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Envelope Detection for an ADC-Relaxed Double-Sideband Low-IF CW Doppler Radar
IEEE Transactions on Microwave Theory and Techniques, 2018In this paper, we propose a new envelope detection (ED) method to reduce the analog-to-digital converters’ (ADCs) sampling rate from 20 kHz to 20 Hz in a double-sideband low-intermediate-frequency (IF) continuous-wave Doppler radar. Compared with the conventional synchronous demodulation (SD) method, which typically consumes a large amount of ADC ...
Xujun Ma +4 more
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High-precision ranging for radar micro-motion target based on envelope migration
2016 CIE International Conference on Radar (RADAR), 2016Phase-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.
Dekang Zhu +3 more
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Constant envelope fractional fourier transform based waveform libraries for MIMO radar
2014 Sensor Signal Processing for Defence (SSPD), 2014In this paper an efficient technique to generate novel libraries of phase-coded waveforms with constant envelope aimed at optimizing signal retrieval is presented. The modulation technique is based on the Fractional Fourier Transform (FrFT), where the signal waveforms retain their constant modulus.
Ilioudis, Christos V. +3 more
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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 ...
R. de Buda +2 more
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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, 2008As 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
Jing Sun +3 more
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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.
J.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.
J.P. Stralka, Gerard G. L. Meyer
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Distortions of the radar signals envelope
Achievements of Modern Radioelectronics, 2022N.А. Kushnerev +2 more
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, 2022