Digital matched filters in unknown interference

Examines the performance of digital matched filters with multi-level quantisation and dither in various type of impulsive interference. The work of Cahn (1971) is extended to eight quantisation level devices. It is then limited to binary quantisation steps to enable simple implementation using digital circuitry. Improvements to Cahn´s device suggested by Turin (1976) are incorporated and the performance of the device evaluated in a variety of interference cases. The device is then further modified by a new suggestion, setting to zero inputs that are outside the region in which any information can be extracted. The performance of this new device is then discussed