, H. K. (H. Lamarr), 62-64 examples, 58-65 Markov chain, 767, 770, 798, 887-889 Mittelholzer, T., 1175-1176 Markov process, 868 ML (see Maximum-likelihood) Mason's formula, 846, 854 Mobile radio applications, 1158-1161, 1165, Massey, J. L., 281, 1175-1176 1170, 1179 Matched filter, 158, 818 Modified Bessel function of the first kind, Matched filter FH acquisition, 983-984 (See also Serial search FH acquisition) Modified code tracking loop (MCTL), 903, Matched filter PN acquisition, 755, 941-948 817-834 Modulation distortion effects in serial (See also Serial search PN acquisition) search PN acquisition, 786 Matched filter (MF) SS system, 11 Modulation self-noise in DLL, 909 historical examples, 112-114, 116-117, MPSK (multiple phase-shift-keyed) signal, 677, 715, 1160 Mathes, R. C., 52 MSK (minimum-shift-keying), 1092 Index Multipath, 29, 442-453, 1102, 1106, 1110, Noise power spectral density, 141 1139, 1148, 1165-1166, 1198-1208 Noise spectral density, single-sided, 782, Multipath communication: historical notes, 94 Noise wheels, 49, 66, 78-84, 123 rake, 66, 94, 96-100, 117, 122-124 NOMAC (Noise Modulation and Multipath delay, 444 Correlation), 66, 87-90, 101, 121 Multipath effects, historical notes, 67, 82, 86 NOMAC encrypted-voice communications, Multiple-amplitude-and-phase-shift-keying (MAPSK), 731 NOMAC matched filter system, 117 Multiple dwell PN acquisition, 754,765, Non-central chi-squared probability 801-810 distribution, 782 (See also Serial search PN acquisition) Non-coherent combining loss, 1057, 1089 Multiple frequency-shift-keyed (MFSK) Non-coherent delay-locked loop (see modulation, 1035-1036 Delayed-locked loop) Multiple phase-shift-keyed (MPSK) signal, Non-coherent detection: 677, 715, 1160 combining loss, 466, 500 Multiple User Tactical Navigation System linear sum metric (square-law (MUTNS), 14 combining), 499-500 Multiplexer, 1096, 1097 of MFSK symbols, 464-465, 472-475, 669 Multiplicative data modulation, 12 Non-limited acquisition time serial search, Multiply-and-integrate correlation (see