(LEO), 1182 decision rule, 602 Low probability of intercept (LPI), 20, 1033, metric, 183, 193-200, 216, 258 Maximum-likelihood algorithm, 758 Lundburg, F., 81 Maximum-likelihood approach to LPI Lutz, S., 121 communication problem, 1089 Maximum-likelihood receiver, 1113, 1121, 1123, 1125, 1134, 1148 M-ary frequency-shift-keyed (MFSK) Maximum search rate of PN tracking loops, modulation, 464 non-coherent energy detection, 464-465 MCTL (modified code tracking loop), 903, orthogonality frequency spacing, 466 941-948 symbol metric, 66 Mean acquisition time (see Acquisition symbol rate, 466, 472 time, mean and variance of) M-sequences: Mean dwell time, 891-896 characteristic polynomial, 285 Mean search update, 779 cross-correlation properties, 329-334 Mean-squared tracking jitter, 911, 921 historical notes, 103-108 Mean time to loss-of-lock for DLL and J-tuple statistics, 287-288 TDL, 933-935 number of cyclically distinct, 286 Meiler, G., 78 partial-period correlation, 292-297 Metric, 183, 189-190, 193-197, 204-208, periodic correlation, 291-292, 304-305 213-218, 228, 247, 254, 259 shift-and-add property, 288-289 Metropolitan area network (MAN), 1162 trace representation, 301-304 Meyer, H. F., 90 Ma, H. H., 546 Meyr, H., 955 McCoppin, E., 121 MF SS system (see Matched filter SS McLaughlin, W., 90 system) MacWilliams-Pless identities, 297 MFSK (multiple frequency-shift-ekeyed) Majority logic decision, 755, 824-825 modulation, 1035-1036 Malm, R. E., 76, 108 (See also M-ary frequency-shift-keyed MAN (metropolitan area network), 1162 modulation) Manamon, L., 90 Mitchelet, A. H., 954 Manchester data, 912-913, 915, 923, 925, 947 Middleton, D., 43 Manley, T., 60 Miessner, B. F., 59 Miller, B., 121 MAPSK (multiple-amplitude-and-phase- Miller, R. L., 594 shift-keying), 731 Mills, W. H., 317 Marchand, N., 47, 48, 69, 80, 124 Minimum polynomial, 297, 387-392 Marconi, G., 48 Minimum-shift-keying (MSK), 1092 Marcum Q-function, 474, 1003 Mismatched receivers, 193,195 Marcus, M., 1160, 1166 Missile guidance systems, historical Markey