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Two‐tone continuous‐wave Doppler radar based on envelope detection method
Microwave and Optical Technology Letters, 2020AbstractA continuous‐wave (CW) Doppler radar using two‐tone frequencies is presented for the measurement of short‐range distance. The envelope detection method is proposed to discriminate each frequency signal in the output waveform of the two‐tone CW Doppler radar sensor.
Jae‐Hyun Park, Jong‐Ryul Yang
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Radar echo envelope extraction using Teager energy operator and wavelet transform
APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems, 2008 As for the projectile with slots at the bottom, the amplitude envelope of monochromatic Doppler radar echo contains the information of the flying attitude. Owning to the nonlinear movement of the projectile, the echo can be modeled as an amplitude modulation (AM) and frequency modulation (FM) signal. To extract the envelope of radar echo scattered from
Yuanqin Wang +3 more
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Near Range Radar Image Reconstruction Algorithm by Weighted Envelopes Transformation
IEEE Geoscience and Remote Sensing Letters, 2018We proposed a methodology to apply inverse boundary scattering transform to process complex radar data with minimum imaging artifacts. Unlike other boundary extraction-based methods, such as shape estimation algorithm based on boundary scattering transform and extraction of directly scattered waves, the developed approach does not rely on peaks of ...
Iakov Chernyak, Motoyuki Sato
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High-precision ranging for radar micro-motion target based on envelope migration
2016 CIE International Conference on Radar (RADAR), 2016 Phase-Derived-Range, a radar range method based on echo phases, is highly evaluated for its root-mean-square (rms) error within half of wavelength and great used on highly precision ranging for micro-motion target. There are two technical challenges, which are ambiguous Doppler phase acquisition and ambiguity resolution.
Zhongshuai Zhang +3 more
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Reduction of Envelope Fluctuations in OFDM Radar Signals Using Coding Technique
2018 International Conference on Communication and Signal Processing (ICCSP), 2018The design of waveforms play an important role in the performance of radar systems. Multicarrier complementary phase-coded signal has been a field of interest for many researchers due to its prominent properties. This paper aims to reduce the Peak-to-Mean Envelope Power Ratio (PMEPR) of a Multicarrier Complementary Phase-Coded (MCPC) signal consisting ...
C.G. Raghavendra +5 more
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Constant envelope robust waveform design for MIMO radar for parameter estimation
2017 IEEE 9th International Conference on Communication Software and Networks (ICCSN), 2017 In MIMO radar, due to the inaccuracy of the prior information, the waveform designed according to the prior information can not meet the need of parameter estimation. A method of constant envelope robust waveform design for MIMO radar based on maximum mutual information (MI) criterion is proposed for this problem.
Congyi Sun, Chen Cui, Yang Gong
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MIMO radar sequence design with constant envelope and low correlation side-lobe levels
AEU - International Journal of Electronics and Communications, 2021Abstract Transmit sequence design plays a significant role in multiple-input multiple-output (MIMO) radar to suppress correlation function side-lobe levels. This paper investigates two practical constraints, namely, constant envelope constraint to reduce the effect of nonlinear amplifiers, and low side-lobe levels to reduce the effect of interference
Ankur Thakur, Davinder Singh Saini
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An Envelope Alignment Method for Terahertz Radar ISAR Imaging of Maneuvering Targets
, 2016 A novel envelope alignment technique for terahertz radar ISAR imaging of maneuvering targets is presented in this paper. This method selects a single pulse echo as the envelope alignment benchmark through the correlation coefficient of adjacent range profiles, which solves the problems of jump error and drift error in the conventional adjacent ...
Tong Liu, Zongjie Cao, Rui Min
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Assessment of Constant Envelope OFDM as a Class of Random FM Radar Waveforms
2020 IEEE Radar Conference (RadarConf20), 2020Random FM radar waveforms designed to possess a desirable spectral shape (on average) have been experimentally demonstrated for an increasing number of applications. However, the benefits of these waveforms can be offset by the computational cost of performing real-time spectral-shaping optimization for each random initial waveform.
Erik R. Biehl +3 more
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A Robust Range Spread Target Detector for Wideband Radar Using Envelope Model Prior
2024 17th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI)Keyi Wang +3 more
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