A practical chip-combining technique that mitigates narrowband jamming of frequency-hopped differential phase-shift keying (FH/DPSK) systems is presented. Since only two-level quantization is needed, this technique does not require side information, such as the jammer state. Numerical results demonstrate that eight-fold chip combining is sufficient to force narrowband noise jammers to spread their transmitted energy over the whole hopping bandwidth (i.e., the optimum waveform jamming attack is a full-band jammer).
|Number of pages||5|
|State||Published - 30 Sep 1990|
|Event||1990 IEEE Military Communications Conference - MILCOM 90 Part 3 (of 3) - Monterey, CA, USA|
Duration: 30 Sep 1990 → 3 Oct 1990
|Conference||1990 IEEE Military Communications Conference - MILCOM 90 Part 3 (of 3)|
|City||Monterey, CA, USA|
|Period||30/09/90 → 3/10/90|