Title :
Performance analysis of subspace projection techniques for interference excision in DSSS communications
Author :
Ramineni, Raja S. ; Amin, Moeness G. ; Lindsey, Alan R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA
Abstract :
This paper presents the performance analysis of the interference excision techniques in direct sequence spread spectrum (DSSS) communications using orthogonal subspace projections. It is shown that this technique is sensitive to the errors in the instantaneous frequency (IF) estimate of the interference over segments of the bit period. This paper discusses the effect of two different types of errors on the receiver SINR and compares the performance of the block-wise processing to the single block projection approach
Keywords :
filtering theory; frequency estimation; frequency modulation; interference suppression; jamming; radio receivers; signal processing; spread spectrum communication; DSSS communications; FM interference excision; FM jammer vector; IF estimate; block-wise processing; direct sequence spread spectrum; instantaneous frequency estimate; orthogonal subspace projections; performance; performance analysis; projection filter; receiver SINR; single block projection; Computer errors; Discrete Fourier transforms; Filters; Frequency estimation; Interference; Jamming; Performance analysis; Signal to noise ratio; Spread spectrum communication; White noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.861101
