Window function use specifics in the processing of the pseudo random amplitude-phase-shift keyed signals
https://doi.org/10.34680/2076-8052.2023.5(134).708-715
Abstract
Window functions are used in the radar signal processing to reduce the undesirable effect of masking a weak signal of a moving target with powerful reflections from stationary or slow-moving objects. The effectiveness of window functions weakens in radars which transmit and receive signals with pseudo random amplitude and phase-shift keying on common aerial. The article shows that pseudorandom pauses between phase-manipulated pulses of pseudo random duration affect the result of window weighted processing. The best parameters of the probing signal for weighing them by window functions during fasttime and slow-time processing are determined. An algorithm for normalization and interpolation of compressed segments of the signal with pseudorandom amplitude and phase-shift keying is proposed. The results obtained are confirmed by modeling the processing of an additive mixture of echo signals with different Doppler frequencies.
About the Authors
I. N. Zhukova
Yaroslav-the-Wise Novgorod State University
Russian Federation
Russian Federation
Veliky Novgorod
N. E. Bystrov
Yaroslav-the-Wise Novgorod State University
Russian Federation
Russian Federation
Veliky Novgorod
References
1. Richards M. A., Seheer J. A., Holm W. A. Principles of Modern Radar. Vol. 1: Basic Principles. Raleigh, NC: Scitech Publishing, 2010. 924 p.
2. Levanon N., Mozeson E. Radar Signals. New York, USA, Wiley, 2004. 432 p.
3. Prabhu K. M. M. Window Functions and Their Applications in Signal Processing. CRC Press. Boca Raton, FL, USA, CRC Press, 2014. 404 p.
4. Harris F. J. On the use of Windows for harmonic analysis with the discrete Fourier transform // Proceedings of the IEEE. 1978. 68(1). 51-83. DOI: 10.1109/PROC.1978.10837
5. Gantmakher V. E., Bystrov N. E., Chebotarev D. V. Shumopodobnye signaly: analiz, sintez, obrabotka [Noise-like signals: analysis, synthesis, and processing]. Saint Petersburg, Nauka i Tekhnika Publ., 2005. 396 p.
6. Zhukova I. N., Bystrov N. E., Reganov V. M., Chebotarev S. D. Time-frequency cross-correlation function estimation in radars with common aerial for transmission and reception of quasicontinuous signals // Journal of Engineering and Applied Sciences. 2018. 13(11Sl). 8826-8835. DOI: 10.36478/jeasci.2018.8826.8835
Review
For citations:
Zhukova I.N., Bystrov N.E. Window function use specifics in the processing of the pseudo random amplitude-phase-shift keyed signals. Title in english. 2023;(5(134)):708-715. (In Russ.) https://doi.org/10.34680/2076-8052.2023.5(134).708-715
Views:
44
Email this article 