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Algorithm used for image processing
CHIRP (Continuous High-resolution Image Reconstruction using Patch priors) is a Bayesian algorithm used to perform a deconvolution on images created in
CHIRP_(algorithm)
Mathematical algorithm
the chirp Z-transform can be computed in O(n log n) operations where n = max ( M , N ) n=\max(M,N) . An O(N log N) algorithm for the inverse chirp Z-transform
Chirp_Z-transform
Topics referred to by the same term
turntablists CHIRP (algorithm), an algorithm used to perform a deconvolution on radio astronomy images Chirp (company), a UK technology company Chirp (phone)
Chirp_(disambiguation)
American computer scientist (born 1989)
development of an algorithm for imaging black holes, known as Continuous High-resolution Image Reconstruction using Patch priors (CHIRP), and was a member
Katie_Bouman
Discrete Fourier transform algorithm
prime-size FFT is due to L. I. Bluestein, and is sometimes called the chirp-z algorithm; it also re-expresses a DFT as a convolution, but this time of the
Fast_Fourier_transform
Global radio telescope array
processing methods for astronomy such as the CHIRP algorithm created by Katherine Bouman and others. The algorithms that were ultimately used were a regularized
Event_Horizon_Telescope
Frequency of a chirp pulse
evaluated by an approximation algorithm or by numerical integration. In the special case where s(t) is constrained to be an up-chirp, flat topped pulse with
Chirp_spectrum
Audio signal processing technique
The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude. It is a technique
Chirp_compression
Technique in digital signal processing
Bluestein's FFT algorithm (chirp-Z) Frequency-shift keying (FSK) Phase-shift keying (PSK) Goertzel, G. (January 1958), "An Algorithm for the Evaluation
Goertzel_algorithm
BL Lac object in the constellation Cancer
Interferometric observations of OJ287 by the VLBA resolved with the CHIRP algorithm and another algorithm by a group from Boston university. OJ287 is a target candidate
OJ_287
Form of radar used to create images of landscapes
But in a chirped radar, this longer pulse also has a frequency shift during the pulse (hence the chirp or frequency shift). When the "chirped" signal is
Synthetic-aperture_radar
The stationary wavelet transform (SWT) is a wavelet transform algorithm designed to overcome the lack of translation-invariance of the discrete wavelet
Stationary_wavelet_transform
Method of physical modelling synthesis
In the original algorithm, this was a burst of white noise, but it can also include any wideband signal, such as a rapid sine wave chirp or frequency sweep
Karplus–Strong string synthesis
Karplus–Strong_string_synthesis
Topics referred to by the same term
Cadmium zinc telluride, a semiconductor material Chirp_Z-transform, another name for Bluestein's FFT algorithm Changzhutan, Changsha-Zhuzhou-xiangTan City
CZT
American social networking service
Twitter unveiled a redesign in August 2021, with adjusted colors and a new Chirp font, which improves the left-alignment of most Western languages. Elon
X_(social_network)
Transform in signal processing
windowed portion of a chirp function. In Mann's words: A wavelet is a piece of a wave, and a chirplet, similarly, is a piece of a chirp. More precisely, a
Chirplet_transform
Outdoor recreational activity
Garmin chirp Brings Geocachers Even More Creativity, Connectivity Archived March 1, 2012, at the Wayback Machine, published October 15, 2010 Garmin Chirp Archived
Geocaching
American electrical engineer (born 1943)
range of novel algorithms for digital filtering and digital spectrum analysis. The most well known of these algorithms are the chirp z-transform method
Lawrence_Rabiner
Laser pulse with duration a picosecond (10^-12 s) or less
Amplification of ultrashort pulses almost always requires the technique of chirped pulse amplification, in order to avoid damage to the gain medium of the
Ultrashort_pulse
Mathematical operation
fractional amount in frequency space (multiplying the input by a linear chirp) and evaluating at a fractional set of frequency points (e.g. considering
Fractional_Fourier_transform
Integral transform
transform corresponds to θ = − 90 ∘ . {\displaystyle \theta =-90^{\circ }.} Chirp multiplication, x ( u ) ↦ e i π τ u 2 x ( u ) {\displaystyle x(u)\mapsto
Linear canonical transformation
Linear_canonical_transformation
Radar with multiple antennas for transmitting and receiving
antennas in an interleaved way. Another proposed signal set is orthogonal chirp signal, which can be expressed as: x m ( t ) = exp ( 2 π j ( f m , 0 t
MIMO_radar
Fourier-related transform for signals that change over time
then the STFT may be more efficiently evaluated using a sliding DFT algorithm. The STFT is invertible, that is, the original signal can be recovered
Short-time_Fourier_transform
Detail of the global positioning system
about 30 centimeters. The civilian L5 signal features the same increase in chirp rate. More advanced GPS receivers measures of the phase of the signal's
Error analysis for the Global Positioning System
Error_analysis_for_the_Global_Positioning_System
Compact astronomical body
Two Neutron Star–Black Hole Mergers, GW200105 and GW200115: Metallicity, Chirp Masses, And Merger Remnant Spins". Monthly Notices of the Royal Astronomical
Black_hole
Sequence of data points over time
bankruptcies, currency circulation and discount rates. Anomaly time series Chirp Decomposition of time series Detrended fluctuation analysis Digital signal
Time_series
Combination of a GPS receiver and a stable oscillator
Oscillator (GPSDO/GNSSDO)?". www.furuno.com. Retrieved 2018-03-08. "GNU Chirp Sounder". www.sgo.fi. Retrieved 2018-03-08. 4411A "Clock Stability Analysis
GPS_disciplined_oscillator
Topics referred to by the same term
style of document presentations in web development. CSS may also refer to: Chirp spread spectrum, a modulation concept, part of the standard IEEE 802.15
CSS_(disambiguation)
Inference engine in an expert system
following four rules: If X croaks and X eats flies - Then X is a frog If X chirps and X sings - Then X is a canary If X is a frog - Then X is green If X is
Forward_chaining
Seventh solar term of traditional East Asian calendars
蝼蝈鸣; traditional Chinese: 螻蟈鳴; pinyin: lóu guō míng – crickets start to chirp Second pentad: Chinese: 蚯蚓出; pinyin: qiūyǐn chū – earthworms come out Last
Lixia
Study of physics on quintillionth-second timescales
broadband solid-state titanium-doped sapphire based (Ti:Sa) lasers (1986), chirped pulse amplification (CPA) (1988), spectral broadening of high-energy pulses
Attosecond_physics
Topics referred to by the same term
Commercial Product Assurance, a form of information security validation Chirped pulse amplification, a technique for amplifying an ultrashort laser pulse
CPA
Research and scientific development company
to chirp radar. 1982 John Wilder Tukey For his contributions to the spectral analysis of random processes and the fast Fourier transform algorithm. 1989
Bell_Labs
BOINC based volunteer computing SETI@home subproject
pulses with dispersion measures ranging from 50 pc/cm3 to 800 pc/cm−3 (chirp rates of 7000 Hz to 400 Hz per microsecond), allowing detection of sources
Astropulse
Tenth solar term of traditional East Asian calendars
蜩始鸣; traditional Chinese: 蜩始鳴; pinyin: tiáo shǐ míng – cicadas begin to chirp Last pentad: Chinese: 半夏生; pinyin: bàn xià shēng – midsummer comes, or Pinellia
Xiazhi
more intense than could have been produced by direct laser amplification. Chirp pulsed amplification rapidly became a transformative contribution for research
History_of_nuclear_fusion
Object detection system using radio waves
which makes use of the change of frequency of returns from moving targets ("chirp"). Pulse-Doppler signal processing includes frequency filtering in the detection
Radar
previously understood. Chirped pulse amplification Donna Strickland received the 2018 Nobel Prize in Physics for the discovery of chirped pulse amplification
List of inventions and discoveries by women
List_of_inventions_and_discoveries_by_women
Oscillator whose frequency can be tuned over some range
heterodyning process similar to that described above. Other uses include chirp generators for radar systems where the VFO is swept rapidly through a range
Variable-frequency_oscillator
Discrepancy of the lack of evidence for alien life despite its apparent likelihood
wolves." One of the characters explains, "We've been sitting in our tree chirping like foolish birds for over a century now, wondering why no other birds
Fermi_paradox
IEEE standard for low-rate wireless personal area networks
including one PHY using direct sequence ultra-wideband (UWB) and another using chirp spread spectrum (CSS). The UWB PHY is allocated frequencies in three ranges:
IEEE_802.15.4
American physicist, writer, and Nobel Laureate (born 1940)
This recorded detection was the first direct observation of the fleeting chirp of a gravitational wave and confirmed a prediction of the general theory
Kip_Thorne
Order of mammals
conditioned to seek the tickling. However, as the rats age, the tendency to chirp declines. Rodents are typical of placental mammals in having only two types
Rodent
Speed of electromagnetic waves in vacuum
pp. 149–153. Parhami, B. (1999). Introduction to parallel processing: algorithms and architectures. Plenum Press. p. 5. ISBN 978-0-306-45970-2. Imbs, D
Speed_of_light
Gravitational-wave signal detected in 2017
amplitude and frequency to a few hundred hertz in the typical inspiral chirp pattern, ending with the collision received at 12:41:04.4 UTC. It arrived
GW170817
System with capability to digitize very high bandwidth signals
a chirped pulse as its frequency is changing with time, and it is typically a few nanoseconds long. The analog signal is modulated onto this chirped pulse
Time-stretch analog-to-digital converter
Time-stretch_analog-to-digital_converter
Method used to analyze protein interactions with DNA
sequences. Competition-ChIP: Measures relative replacement dynamics on DNA. ChiRP-Seq: Measures RNA-bound DNA and proteins. ChIP-exo: Employs exonuclease
CUT&RUN_sequencing
History of social media site Twitter
The definition was "a short burst of inconsequential information", and "chirps from birds". And that's exactly what the product was. The first Twitter
History_of_Twitter
Adages and sayings named after a person
an empirical relationship between temperature and the rate of cricket chirping. Dollo's law: "An organism is unable to return, even partially, to a previous
List_of_eponymous_laws
Tabletop role-playing web series
As the venue's ticketing is managed by Ticketmaster, a surge pricing algorithm meant that tickets were briefly selling for thousands of dollars, at higher
Dimension_20
Insects of the order Blattodea
Cryptocercus. Some species make a buzzing noise while other cockroaches make a chirping noise. Gromphadorhina species and Archiblatta hoeveni produce sound through
Cockroach
Howling caused by a circular path in an audio system
work by shifting the frequency slightly, with this upshift resulting in a chirp-sound instead of a howling sound of unaddressed feedback. Other devices
Audio_feedback
List of scientists who are Christians
development of the first all-optical laser diode flip-flop, the first negative chirp electroabsorption modulator and the invention of a technique for transmitting
List of Christians in science and technology
List_of_Christians_in_science_and_technology
Relative importance of certain frequencies in a composite signal
signal content over frequency. For transfer functions (e.g., Bode plot, chirp) the complete frequency response may be graphed in two parts: power versus
Spectral_density
Function used in signal processing
in modal analysis, such as an impulse, a shock response, a sine burst, a chirp burst, or noise burst, where the energy vs time distribution is extremely
Window_function
Function of propagation delay and Doppler frequency
radar or sonar pulse is the linear frequency modulated (LFM) pulse (or "chirp"). It has the advantage of greater bandwidth while keeping the pulse duration
Ambiguity_function
Filtering technique
the signal subspace are identified empirically, and may for example be chirps, or particular characteristic shapes of transients after particular triggering
Signal_subspace
Type of pseudorandom binary sequence
high signal-to-noise ratio for our measurement Chan, Ian H. "Swept Sine Chirps for Measuring Impulse Response" (PDF). thinksrs.com. Retrieved 2016-05-19
Maximum_length_sequence
Academic college of the University of Florida
achievements include contributions of the algorithm and input optics for LIGO, which has detected several "chirps" of gravitational waves produced by colliding
University of Florida College of Liberal Arts and Sciences
University_of_Florida_College_of_Liberal_Arts_and_Sciences
US patent law judicial test
rejections. In Walter, the invention was a system for processing seismic "chirp" signals by mathematical procedures. The PTO asked the court to reconsider
Freeman-Walter-Abele_Test
Winners of satirical science award
of Gothenburg: 45–48. Schötz, Susanne (2013). "A phonetic pilot study of chirp, chatter, tweet and tweedle in three domestic cats". Proceedings of Fonetik
List of Ig Nobel Prize winners
List_of_Ig_Nobel_Prize_winners
Audio device to detect the presence of bat sound signals
audible sounds; different algorithms are being used to accomplish this, and there is active development and tuning of algorithms going on. One strategy called
Bat_detector
one reverses. The alert generally consists of a sound (like an auditory chirp) and a visual signal in either the outside mirror or the dash display for
Collision avoidance in transportation
Collision_avoidance_in_transportation
Refractive eye surgery procedure
presbyopia is a possibility. Experienced surgeons employ a custom-profile algorithm to further enhance predictability in their results.[citation needed] In
Photorefractive_keratectomy
Technology for measuring geometrical dimensions of particle
themselves in an orderly direction. algorithms used in laser diffraction analysis are not thoroughly validated. Different algorithms are used at times to have collected
Laser_diffraction_analysis
Method used to analyze protein interactions with DNA
sequencing Competition-ChIP, to measure relative replacement dynamics on DNA. ChiRP-Seq to measure RNA-bound DNA and proteins. DRIP-seq uses S9.6 antibody to
ChIP_sequencing
signal before conventional monostatic algorithms (such as the Range Doppler Algorithm (RDA) and Chirp Scaling Algorithm (CSA)) can be applied. For this, the
High Resolution Wide Swath SAR imaging
High_Resolution_Wide_Swath_SAR_imaging
Techniques to maintain quantum coherence
population transfer. One of the most prolific generic pulse shapes is a chirped pulse a pulse with a varying frequency in time. Optimal control as applied
Coherent_control
René (20 March 2018). "BANYAN. XI. The BANYAN Σ Multivariate Bayesian Algorithm to Identify Members of Young Associations with 150 pc". The Astrophysical
List of software for astronomy research and education
List_of_software_for_astronomy_research_and_education
Ultrasonic transducer identification system
2019-06-28. Archived from the original on 2019-06-18. "Wiring Diagrams for CHIRP Transducers". 2019-06-28. Archived from the original on 2018-08-27.
Transducer_ID
Change in wavelength of light
"Paper-and-pencil cosmological calculator". arXiv:1303.5961 [astro-ph.CO]. Includes algorithm used to draw the graph. The technique was first described by: Baum, W
Redshift
Time-frequency transform in geophysics
second experiment, two more high frequency bursts are added to crossed chirps. In the result, all four frequencies were detected by the S transform. On
S_transform
Volunteer computing project
digital signal processing, mostly discrete Fourier transforms at various chirp rates and durations. To date, the project has not confirmed the detection
SETI@home
Doppler radar designed for the Eurofighter Typhoon aircraft
addition to this standard method, it is also possible to transmit narrowband chirps with stepped carrier frequencies as a continuum. The former was already
Euroradar_CAPTOR
Bonmassar and Eric L. Schwartz. Space-variant fourier analysis: the exponential chirp transform. IEEE Transactions on Pattern Analysis and Machine Intelligence
Eric_L._Schwartz
Tracking system
24730-5:2010 Information technology — Real-time locating systems (RTLS) — Part 5: Chirp spread spectrum (CSS) at 2,4 GHz air interface ISO/IEC 24730-21:2012 Information
Real-time_locating_system
Experiments examining the average path length for social networks
inspired by Watts' efforts to understand the synchronization of cricket chirps, which show a high degree of coordination over long ranges as though the
Small-world_experiment
Public university in Ontario, Canada
faculty. Strickland was honoured for being half of the team to discover chirped pulse amplification, a technique that underpins today's short-pulse, high-intensity
University_of_Waterloo
Acoustic sensing method
as measuring its velocity. The pulse may be at constant frequency or a chirp of changing frequency, to allow pulse compression on reception. Simple sonars
Sonar
Acoustics process
parameters. The most widely used test signal is a swept sine wave, also called chirp. This signal maximizes the measurement's signal-to-noise ratio, and the
Digital_room_correction
2013 family film
Jolin applauded the visual effects but said that "the decision to insert chirp-pop songs and voice the principal dinosaurs" overshadowed the effects. Tom
Walking_with_Dinosaurs_(film)
Ionization technique
Population inversion Ultrashort pulse Optics Beam expander Beam homogenizer Chirped pulse amplification Gain-switching Gaussian beam Injection seeder Laser
Matrix-assisted laser desorption/ionization
Matrix-assisted_laser_desorption/ionization
Canadian wearable tech engineer (born 1962)
Mann introduced the chirplet transform in 1991, a representation based on chirp signals that extends wavelet-based methods. He later developed techniques
Steve_Mann_(inventor)
American engineer and intelligent design advocate (born 1950)
Charles Baylis, and Robert J. Marks. "The Smith Tube: Selection of radar chirp waveform bandwidth and power amplifier load impedance using multiple-bandwidth
Robert_J._Marks_II
16 April – Scientists at the Riken institute demonstrate "advanced dual-chirped optical parametric amplification", which provides a 50-fold increase in
2024_in_science
Measurement of the direction from which a received signal was transmitted
and ESM, respectively) and the use of Spread spectrum techniques, such as Chirp compression, by the Radar, to increase the processing gain of its receiver
Direction_finding
Time-frequency analysis
\sigma } controls the scaling factor η {\displaystyle \eta } controls the chirp rate S. G. Mallat and Z. Zhang, “Matching pursuits with time-frequency dictionaries
Basis expansion time-frequency analysis
Basis_expansion_time-frequency_analysis
Radio telescope array
point spread function which is sufficiently good that much-less-complex algorithms can be used to create images, as shown in the figure on the bottom right
Deep_Synoptic_Array
Imaging technique
usually 2 or 4 images per modulation period are acquired, depending on the algorithm used. More recently, approaches that allow rapid single-shot imaging were
Optical_coherence_tomography
with two different quasi-monochromatic frequencies (usually derived by chirping a copy of the pulse itself), although it can also be achieved by spectral
Spectral phase interferometry for direct electric-field reconstruction
Spectral_phase_interferometry_for_direct_electric-field_reconstruction
Characteristic impedance – Charge-coupled device – Chemical vapor deposition – Chirp – Chroma subsampling – Circuit breaker – Circuit noise level – Circuit reliability
Index_of_electronics_articles
Award presented by the Institute of Electrical and Electronics Engineers
Medal of Honor in 2007 for contributions to the development of powerful algorithms for communications, control, computing and signal processing. "Thomas
IEEE_Medal_of_Honor
Method of measuring ultrashort laser pulses
pulse as short as possible. For instance, the pulse could be linearly chirped or present higher order group delay dispersion (GDD) so that its duration
Multiphoton intrapulse interference phase scan
Multiphoton_intrapulse_interference_phase_scan
Laser using electron beam in vacuum as gain medium
Ilyin, V. A.; Senin, R. A.; Vartanyants, I. A. (2015-11-01). "Sorting algorithms for single-particle imaging experiments at X-ray free-electron lasers"
Free-electron_laser
American physicist
Friedland, L.; Siddiqi, I. (February 2011). "Quantum fluctuations in the chirped pendulum". Nature Physics. 7 (2): 105–108. arXiv:1008.4411. Bibcode:2011NatPh
Irfan_Siddiqi
Signal analysis tool
valuable for identifying complicated forms of nonstationarity, such as chirps, frequency-modulated components, or slowly-varying drifts, which are difficult
Hilbert–Huang_transform
Scanning of an object or environment to collect data on its shape
The extracted building outlines are then simplified using an orthogonal algorithm to obtain better cartographic quality. Watershed analysis can be conducted
3D_scanning
Fellowship Katie Bouman (BS Electrical Engineering 2011), developer of CHIRP, an algorithm used in filtering the first images of a black hole taken by the Event
List of University of Michigan alumni
List_of_University_of_Michigan_alumni
Safety feature
sound changes on the left or right appropriately. The company argues that "chirps, beeps and alarms are more distracting than useful", and that the best sounds
Electric vehicle warning sounds
Electric_vehicle_warning_sounds
Auditory phenomenon in the brain
Intensity: usually start at 70 dBnHL Stimulus type: click (100 us long), chirp or toneburst Transducer type: insert, bone vibrator, sound field, headphones
Auditory_brainstem_response
CHIRP ALGORITHM
CHIRP ALGORITHM
Boy/Male
Indian
Long of time
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Tamil
Sound; Chirp; A Voice of Peacock
Surname or Lastname
English
English : nickname from Middle English sparewe ‘sparrow’, perhaps for a small, chirpy person, or else for someone bearing some fancied physical resemblance to a sparrow.
Boy/Male
Indian, Sanskrit
Long Time Leave; Permanently
Boy/Male
Indian, Telugu
Little
Boy/Male
English American
Man (from the Old English 'ceorl'). Famous Bearers: American movie star Charles Bronson;...
Surname or Lastname
English (mainly Devon)
English (mainly Devon) : nickname for a chirpy person, from Middle English pinch, pink ‘(chaf)finch’. Compare Finch.English (mainly Devon) : possibly a metonymic occupational name from Middle English pinche ‘pleated fabric’, from Middle English pinche(n) ‘to pinch (pastry)’, ‘to pleat (fabric)’, ‘to crimp (hair, etc.)’, also ‘to cavil’, ‘to be niggardly’.
Girl/Female
Bengali, French, Hebrew, Hindu, Indian, Sanskrit
Permanently
Boy/Male
Hindu, Indian
Chirp of Birds
Surname or Lastname
English
English : occupational nickname for a carpenter or woodcutter, from Middle English chip(pe) ‘small piece of sawn or cut wood’.
Boy/Male
Tamil
Boy/Male
Hindu
Boy/Male
Tamil
Chirp of birds
Boy/Male
American, Australian, British, Christian, English, German, Jamaican
Chipping Sparrow; Man; Strong Man; A Freeman
Boy/Male
Muslim
Long of time
CHIRP ALGORITHM
CHIRP ALGORITHM
Girl/Female
Arthurian Legend English
Abbreviation of Lynnette who accompanied Sir Gareth on a knightly quest in Arthurian legend;Irish...
Girl/Female
German
Strong as Man
Girl/Female
German Teutonic Scottish
Hostage.
Girl/Female
Muslim
Prouded like a Moon
Surname or Lastname
German
German : nickname for a clumsy person, from Middle High German sūsen ‘to move noisily’.English and Scottish : occupational name from Middle English sauser ‘sauce maker’ (Old French saucier, saussier).
Girl/Female
Irish
noble.
Girl/Female
Muslim
Praiseworthy, Praiser of Allah
Girl/Female
Muslim
Life
Boy/Male
Gujarati, Indian
Of Long Life
Girl/Female
Indian, Traditional
Goddess Laxmi
CHIRP ALGORITHM
CHIRP ALGORITHM
CHIRP ALGORITHM
CHIRP ALGORITHM
CHIRP ALGORITHM
n.
A short, sharp note, as of a bird or insect.
v. i.
To chirp, as a young bird.
v. i.
To chirp or to make a mournful cry, as a bird.
n.
The cry of a young chicken; a chirp.
v. i.
To chirp in a tremulous manner, as a bird.
n.
Alt. of Chirm
n.
A chip; a alice.
p. pr. & vb. n.
of Chirp
n.
The act of chirping; a chirp.
v. i.
To cry or chirp, as a chicken; to peep.
v. i.
To make a low whistling sound; to chirp, as birds.
v. i.
To make a short, shrill, cheerful sound; to chirp. See Chirrup.
imp. & p. p.
of Chip
v. i.
To chirp like a bird.
p. pr. & vb. n.
of Chip
v. i.
To chirp or chirrup.
v. i.
To make a shop, sharp, cheerful, as of small birds or crickets.
imp. & p. p.
of Chirp
v. i.
To chirp.
v. t.
To cheer; to enliven; as, to chirk one up.