A novel compressive sampling system for chirp signal

IEICE Electronics Express

Enpin Yang¹  Xiao Yan¹  Kaiyu Qin¹ 

[1] School of Aeronautics and Astronautics, University of Electronic Science and Technology of China

关键词: compressive sampling;    chirp signal;    MWC;    chirp rate estimation;    signal reconstruction;   

DOI  :  10.1587/elex.14.20170204

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

In this letter, a compressive sampling system, which can acquire chirp signal without the prior information of carrier frequency and chirp rate, is proposed. The system first estimates the chirp rate based on windowed modulated wideband converter (MWC). When chirp rate is derived, the system can de-chirp the target signal. Then, the de-chirped signal is acquired by sampling module of the system. Finally, basedon samples, the original signal can be reconstructed by a greedy iteration algorithm which has an adaptive halting condition. Simulation results show the system is capable of estimating chirp rate and reconstructing original signal.

【 授权许可】

CC BY