| タイトル | A general analysis of anti-jam communication systems |
| 著者（英） | Levitt, B. K.; Omura, J. K. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.; California Univ. |
| 発行日 | 1981-01-01 |
| 言語 | eng |
| 内容記述 | A general error bound is derived for a general anti-jam communication system which will serve as the basis for evaluating the performance of all such complex communication systems. The two most common spread spectrum techniques, coherent DS/BPSK and noncoherent FH/MFSK, are analyzed. Pulse jamming represents the worst type of jammer for DS/BPSK systems, and several receiver structures against such a jammer are examined. It is found that for low values of chip energy-to-noise ratios of O dB or less there is little difference between having or not having jammer state knowledge with a hard decision receiver. Soft decision receivers are shown to be useless against very narrow pulses without jammer state knowledge. Partial band jammers are close to the worst case jammer for FH/MFSK systems. The conclusions found for these systems are similar to those for the DS/BPSK systems. |
| NASA分類 | COMMUNICATIONS AND RADAR |
| レポートNO | 83A19694 |
| 権利 | Copyright |
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