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searching for Delay Doppler 25 found (28 total)

GNSS reflectometry (893 words) [view diff] exact match in snippet view article find links to article

the two parameters time delay and frequency change. As a result, the Delay Doppler Map (DDM) can be obtained as GNSS-R observable. The shape and power

SoundRenderer (182 words) [view diff] case mismatch in snippet view article find links to article

realistic surrounding, it uses several realworld effects: distance-delay doppler-effect air-absorption panning There are two different kinds of nodes

2015 AZ43 (437 words) [view diff] no match in snippet view article find links to article

asteroid on 18–19 February 2015, but the signal was not strong enough for delay-Doppler imaging. "MPEC 2015-B05: 2015 AZ43". IAU Minor Planet Center. 16 January

Ronny Hadani (1,115 words) [view diff] no match in snippet view article find links to article

wireless startup that focuses on wireless improvements using OTFS and the Delay-Doppler model to improve FDD/TDD spectrum performance with channel detection

(85990) 1999 JV6 (566 words) [view diff] no match in snippet view article

Bank Observatory confirmed 1999 JV6's elongated shape and provided delay-Doppler images used to obtain a preliminary estimate of a 3D model for its shape

Cyclone Global Navigation Satellite System (2,543 words) [view diff] exact match in snippet view article find links to article

ocean surface wind speed data products. Each CYGNSS satellite carries a Delay Doppler Mapping Instrument (DDMI), consisting of: a Delay Mapping Receiver (DMR)

2020 BX12 (2,371 words) [view diff] no match in snippet view article find links to article

approach distances of 0.18 AU and 0.34 AU, respectively. In Arecibo delay-Doppler radar observations from 4 January to 5 January 2020, 2020 BX12 was resolved

(388188) 2006 DP14 (710 words) [view diff] no match in snippet view article

the 70-meter dish at Goldstone Observatory. These observations, using delay-Doppler radar imaging, revealed a 400×200 meters sized body, while the Collaborative

Channel sounding (1,197 words) [view diff] exact match in snippet view article find links to article

channel: Direction of departure (DOD) Direction of arrival (DOA) Time delay Doppler shift Complex polarimetric path weight matrix To characterize the propagation

Radar astronomy (1,512 words) [view diff] no match in snippet view article find links to article

time/frequency modulation and polarization] Resolve objects spatially. Delay-Doppler measurement precision. Optically opaque penetration. Sensitive to high

M-type asteroid (2,513 words) [view diff] no match in snippet view article find links to article

largest M-type asteroid known after 16 Psyche and 22 Kalliope. Radar delay-Doppler imaging, high-resolution telescopic images, and several stellar occultations

4197 Morpheus (965 words) [view diff] no match in snippet view article find links to article

astronomers at the Goldstone Observatory analysed Morpheus using radar delay-Doppler imaging. The resultant images are not very clear, but they show that

Ambiguity function (3,643 words) [view diff] no match in snippet view article find links to article

similar to that of the square pulse, except that it is skewed in the delay-Doppler plane. Slight Doppler mismatches for the LFM pulse do not change the

216 Kleopatra (1,620 words) [view diff] no match in snippet view article find links to article

Kleopatra was more elongate and the most recent models using radar delay-Doppler imaging, adaptive optics, and stellar occultations provide dimensions

2012 TC4 (1,894 words) [view diff] no match in snippet view article find links to article

Goldstone Observatory and Green Bank Telescope on 12 October 2017. The delay-doppler images had a range resolution of 1.9 meters/pixel, the highest resolution

4486 Mithra (1,022 words) [view diff] no match in snippet view article find links to article

0.0465 AU (6,960,000 km; 18.1 LD) from Earth. Radar imaging using a delay-Doppler technique at the Arecibo and Goldstone observatories rendered a rotation

65803 Didymos (2,446 words) [view diff] no match in snippet view article find links to article

discovered by others; suspicions of binarity first arose in Goldstone delay-Doppler echoes, and these were confirmed with an optical lightcurve analysis

Contact binary (small Solar System body) (3,072 words) [view diff] no match in snippet view article

1989 PB), whose double-lobed shape was revealed in high-resolution delay-Doppler radar imaging by the Arecibo Observatory and Goldstone Solar System

(52768) 1998 OR2 (1,285 words) [view diff] no match in snippet view article

ExploreNEOs Warm Spitzer program, 1998 OR2 is a rather rare L-type asteroid. Delay-Doppler radar observations by the Arecibo Observatory in April 2020 have shown

101955 Bennu (8,154 words) [view diff] no match in snippet view article find links to article

Bibcode:2021Icar..36914594F. doi:10.1016/j.icarus.2021.114594. "Goldstone Delay-Doppler Images of 1999 RQ36". Asteroid Radar Research. Jet Propulsion Laboratory

2017 YE5 (2,745 words) [view diff] no match in snippet view article find links to article

Collage of Goldstone delay-Doppler images of 2017 YE5 during its close approach to Earth

Dimorphos (3,681 words) [view diff] no match in snippet view article find links to article

occultations. With his collaborators, he confirmed from the Arecibo radar delay-Doppler images that Didymos is a binary system. The Working Group for Small

Shlomo Rakib (1,099 words) [view diff] no match in snippet view article find links to article

processing. The firm focuses on wireless improvements using OTFS and the Delay-Doppler model to improve FDD/TDD spectrum performance. In 2012, Rakib founded

Cohere Technologies (857 words) [view diff] no match in snippet view article find links to article

Telefónica in 2018. In 2018, the company changed its focus to the use of Delay-Doppler-based channel detection, estimation and prediction, as well as precoding

Chirp compression (10,409 words) [view diff] no match in snippet view article find links to article

pdf Feb 2010, p. 43 Nagajyothi A. and Rajarajeswari K., "Delay-Doppler Performance of Hyperbolic Frequency Modulation Waveforms", Intl. Jour