Title :
Design of mismatched filters for pulse compression in a multiple user sonar ranging system
Author :
Griep, Kari R. ; Ritcey, James A. ; Burlingame, John J.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
We consider the design of a multiple user phase coherent sonar ranging system to locate a vehicle on a underwater test range. Phase coherent signaling with short coded pulse burst is employed for ranging. CDMA is used to separate users, and we discuss the code selection and mismatched filter design. Gaussian noise, narrowband interference, multipath, and the multiple users are all sources of performance degradation. Mismatched filter design is applied to a single user system with four-phased length 34 code as well as a four user system with four-phase length 34 codes. The results show significant improvement over matched filtering
Keywords :
acoustic signal processing; code division multiple access; filtering and prediction theory; signal detection; sonar; CDMA; Gaussian noise; e code selection; mismatched filter design; multipath; multiple user sonar ranging system; narrowband interference; performance degradation; phase coherent signaling; phase coherent sonar; pulse compression; range detection; range resolution; short coded pulse burst; single user system; underwater test range; vehicle location; Degradation; Filters; Gaussian noise; Interference; Multiaccess communication; Narrowband; Pulse compression methods; Sonar; System testing; Underwater vehicles;
Conference_Titel :
Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-4120-7
DOI :
10.1109/ACSSC.1993.342398
