Bit interleaving technique as a radar interference canceller

• Published in: Electronics & communications in Japan. Part 1, Communications Vol. 77; no. 11; pp. 83 - 93
• Main Authors: Aikawa, Satoru, Ohmoto, Ryutarou, Okuno, Takao
• Format: Journal Article
• Language: English
• Published: New York Wiley Subscription Services, Inc., A Wiley Company 01.11.1994
• Subjects: bit interleaving technique; Digital microwave radio systems; radar interference cancellation
• ISSN: 8756-6621; 1520-6424
• DOI: 10.1002/ecja.4410771108

Recently, degradation due to radar interference has been reported in high‐frequency efficiency microwave radio systems. However, there has been no solution to this problem. This paper proposes a bit interleaving technique as a radar interference canceller and presents a designing method and its performance in digital microwave radio systems. First, the characteristics of radar interference are described. Next, the bit interleaving technique is proposed as an interference canceller for maritime radar, whose source is difficult to determine. Next, the method of designing the bit interleaving on a channel with burst errors and random errors is described. Finally, the effectiveness of the canceller is shown by the experimental results obtained using a prototype. The results show that bit interleaves can correct errors due to radar interference.