Weighted ℓ2,1 minimisation for high resolution range profile with stepped frequency radar

2012 ◽  
Vol 48 (18) ◽  
pp. 1155-1156 ◽  
Author(s):  
C. Zheng ◽  
X. Wang ◽  
X.-G. Xia ◽  
G. Li
Keyword(s):  
High Resolution ◽  
Range Profile ◽  
Stepped Frequency ◽  
High Resolution Range Profile

The Research Methodology of AR Spectrum Estimation to Stepped-Frequency Signal Processing

2013 ◽  
Vol 313-314 ◽  
pp. 1243-1246
Author(s):  
Jian Bai ◽  
Wei Zhang ◽  
Hou Jun Sun
Keyword(s):  
Signal Processing ◽  
High Resolution ◽  
Research Methodology ◽  
Linear Prediction ◽  
Ar Model ◽  
Spectrum Estimation ◽  
Frequency Signal ◽  
Range Profile ◽  
Stepped Frequency ◽  
High Resolution Range Profile

This paper uses modern spectrum setimation to process stepped-frequency signals which have extracted to obtain high resolution range profile. This paper use FPE criteria and AIC criteria to estimate the order of AR model, and linear prediction is used to test the performance of AR model. Compared with conventional IFFT processing, the results of spectrum estimation is satisfactory, and the exact location of high resolution range profile is determined.

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.

High resolution range profile formation based on LFM signal fusion of multiple radars

2007 ◽  
Vol 24 (1) ◽  
pp. 75-82 ◽  
Author(s):  
Cheng Wang ◽  
Weidong Hu ◽  
Xiaoyong Du ◽  
Wenxian Yu
Keyword(s):  
High Resolution ◽  
Signal Fusion ◽  
Range Profile ◽  
High Resolution Range Profile
Sign in / Sign up

Export Citation Format

Share Document