Adaptive Waveform Design in Random Stepped Frequency Radar

2013 ◽  
Author(s):  
Tianyao Huang ◽  
Huadong Meng ◽  
Xiqin Wang ◽  
Yimin Liu
Keyword(s):  
Waveform Design ◽  
Stepped Frequency

scholarly journals HRR Profiling on Integrated Radar-Communication Systems Using OFDM-PCSF Signals

2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
Xuanxuan Tian ◽  
Tingting Zhang ◽  
Qinyu Zhang ◽  
Zhaohui Song
Keyword(s):  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
Waveform Design ◽  
Data Rate ◽  
Frequency Division ◽  
Range Resolution ◽  
High Data ◽  
Range Profile ◽  
Transmission Data ◽  
Stepped Frequency

In order to improve both the transmission data rate and the range resolution simultaneously in integrated radar-communication (RadCom) systems, orthogonal frequency-division multiplexing with phase-coded and stepped-frequency (OFDM-PCSF) waveform is proposed. A corresponding high resolution range (HRR) profile generation method is also presented. We first perform OFDM-PCSF waveform design by combining the intrapulse phase coding with the interpulse stepped-frequency modulation. We then give the ambiguity function (AF) based on the presented waveforms. Then, the synthetic range profile (SRP) processing to achieve HRR performance is analyzed. Theoretical analysis and simulation results show that the proposed methods can achieve HRR profiles of the targets and high data rate transmissions, while a relative low computational complexity can be achieved.

scholarly journals Design and Processing Method for Doppler-Tolerant Stepped-Frequency Waveform Using Staggered PRF

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6673
Author(s):  
Yan Zhang ◽  
Chunmao Yeh ◽  
Zhangfeng Li ◽  
Yaobin Lu ◽  
Xuebin Chen
Keyword(s):  
High Resolution ◽  
Design Method ◽  
Pulse Repetition Frequency ◽  
Waveform Design ◽  
Repetition Frequency ◽  
Pulse Repetition ◽  
Electromagnetic Data ◽  
Range Profile ◽  
Stepped Frequency ◽  
High Resolution Range Profile

Stepped-frequency waveform may be used to synthesize a wideband signal with several narrow-band pulses and achieve a high-resolution range profile without increasing the instantaneous bandwidth. Nevertheless, the conventional stepped-frequency waveform is Doppler sensitive, which greatly limits its application to moving targets. For this reason, this paper proposes a waveform design method using a staggered pulse repetition frequency to improve the Doppler tolerance effectively. First, a generalized echo model of the stepped-frequency waveform is constructed in order to analyze the Doppler sensitivity. Then, waveform design is carried out in the stepped-frequency waveform by using a staggered pulse repetition frequency so as to eliminate the high-order phase component that is caused by the target’s velocity. Further, the waveform design method is extended to the sparse stepped-frequency waveform, and we also propose corresponding methods for high-resolution range profile synthesis and motion compensation. Finally, experiments with electromagnetic data verify the high Doppler tolerance of the proposed waveform.

scholarly journals Waveform design for random stepped frequency radar to estimate object velocity

2018 ◽  
Vol 54 (14) ◽  
pp. 894-896
Author(s):  
Zhikun Liao ◽  
Dawei Lu ◽  
Jiemin Hu ◽  
Jun Zhang
Keyword(s):  
Waveform Design ◽  
Object Velocity ◽  
Stepped Frequency

A New OFDM Phase-coded Stepped-frequency Radar Signal and Its Characteristic

2011 ◽  
Vol 33 (3) ◽  
pp. 677-683 ◽  
Author(s):  
Kai Huo ◽  
Wei-dong Jiang ◽  
Xiang Li ◽  
Jun-jie Mao
Keyword(s):  
Radar Signal ◽  
Stepped Frequency
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