Results 211 to 220 of about 44,798 (233)
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Fast computations of constant envelope waveforms for MIMO radar transmit beampattern
2010 IEEE Radar Conference, 2010Designing transmit beampattern with MIMO radars generally requires the waveforms to be able to have arbitrary cross-correlation values. In contrast to the available algorithms, the proposed technique provides a closed-form solution for the synthesis of covariance matrix, R, of the waveforms to obtain desired beampattern match.
Sajid Ahmed +3 more
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Multicarrier radar signals with low peak-to-mean envelope power ratio
IEE Proceedings - Radar, Sonar and Navigation, 2003A multicarrier phase-coded (MCPC) pulse consists of N sequences of M bits each. The N sequences modulate N carriers that are transmitted simultaneously. The carriers are equally spaced. The carrier separation Df equals the inverse of the bit duration tb forming orthogonal frequency division multiplexing (OFDM).
E. Mozeson, N. Levanon
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Non-Contact Respiration Rate Estimation using 24 GHz Pulse Radar Employing Envelope Detection
2020 IEEE International RF and Microwave Conference (RFM), 2020Recently, there are a lot of interest in utilizing radar technology to realize non-contact respiration rate (RR) measurements. This paper presents an RR estimation using a 24 GHz pulse radar employing an envelope detection on the IF signal at the receiver.
Suraya Zainuddin +5 more
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Full Waveform Inversion of Cross-hole Radar Data Using Envelope Objective Function
2018 17th International Conference on Ground Penetrating Radar (GPR), 2018The full waveform inversion (FWI) has been used as a high resolution imaging method for cross-hole radar inversion implementation, however, when FWI is used to process field data, it encounters a variety of problems and causes the inversion to fall into a local minimum. One problem is that the GPR data lacks low frequency information.
Xintong Liu, Sixin Liu, Lei Fu
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2007 41st Annual Conference on Information Sciences and Systems, 2007
Constant envelope orthogonal frequency-division multiplexing (CE-OFDM) is evaluated as a potential wideband radar pulse compression modulation using ambiguity function analysis.
John P. Stralka, Gerard G. L. Meyer
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Constant envelope orthogonal frequency-division multiplexing (CE-OFDM) is evaluated as a potential wideband radar pulse compression modulation using ambiguity function analysis.
John P. Stralka, Gerard G. L. Meyer
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Effect of envelope limiting in pulse-compression moving-target-indicator radar systems
Proceedings of the Institution of Electrical Engineers, 1972Computer simulations are used to study the effect of envelope limiting on the performance of pulse-compression moving-target-indicator (m.t.i.) radar in the presence of clutter produced by stationary reflectors and nonstationary reflectors. It is shown that the use of pre-envelope concepts to deal with bandpass processes as complex lowpass envelopes ...
C.M. Thorsteinson +2 more
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Search and track coordination in multi-ship multi-radar systems using schedulability envelope
Real-Time Systems, 2007This paper addresses the search and track coordination problems of multiple shipboard radars. The proposed approach first exploits the physical characteristics of a single phased array radar to improve its effective capacity. Its effective capacity is abstracted by a closed-form equation called a schedulability envelope.
Phil-Su Kang, Chang-Gun Lee
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, 2023 Integrated Radar and Communication System Design Based on Constant Envelope Waveform
2022Hao Lu +4 more
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