Spatial compressive array processing scheme against multiple narrowband interferences for GNSS

in International Symposium (oral presentation paper), 國際研討會(全文口頭發表)
標題Spatial compressive array processing scheme against multiple narrowband interferences for GNSS
出版類型國際研討會(全文口頭發表)
出版年度2012
AuthorsChung-Liang Chang, 張仲良, & Guo-Shing Huang 黃國興
出版日期Oct 2 2012 12:0
會議地點Roma
其他編號0000
中文摘要

Conventional spatial-based array processing technique
requires a lot of large storage space and costly hardware
implementations in an antenna array-based global navigation
satellite system (GNSS) receivers. In this paper, the compressive
sensing (CS)-based antenna array processing scheme is proposed
to apply in anti-jamming GNSS receivers. The design criteria of
CS matrix is to meet the restricted isometry property (RIP)
conditions, and it is combined with discrete wavelet transform
and Gaussian measurement matrix. The minimum variance
distortionless response (MVDR) beamformer is used to null the
interference and maintain the gain direction of desired signal and
the proposed scheme reduces a large computation load in MVDR.
Under the use of 3×3 antennas with uniform rectangular array
under 1/2 wavelength spacing, the anti-jam performance is
achieved to 40 dB under two present interferences. The overall
computation performance can enhance by 1.2~1.4 times.

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