g need, historical statement, 65 tracking loops, 904, 928-933 Appleton, E. V., 42 Acquisition probability, 789 AR (autoregressive) process, 987 Acquisition time, mean and variance of, 769 ARC-50 (AN/ARC-50), 73, 108-111, 124 for multiple dwell PN system, 802-803 Arm filter band-limiting effects, 928 for single dwell PN system, 772 Armstrong, E. H., 51, 59, 65 combined with search/lock strategy, Arnold, C., 73 887-889 ASEAT (autoregressive spectral estimation Active correlation, 755, 817 acquisition technique), 987-989 (See also Serial search PN acquisition) Asymptomatic performance bounds, 582, Adams, P., 48, 78, 85 584-586 Adaptive jammers, 471 Asynchronous code division multiple access repeat-back jammer, 13, 27, 30, 144, 468, (A-CDMA), 1175-1176, 1178-1180 Automatic gain control (AGC), 105-106, Adaptive multiple spot beam antennas, 1125, 1147 Autoregressive (AR) process, 987 Additive noise, band-pass representation, Autoregressive spectral estimation acquisition technique (ASEAT), Additive white Gaussian noise (AWGN), 987-989 Average number of samples to dismiss test, Advance (retard) interval of delay-locked 866, 878 loop, 904 Average test duration, 868, 870 AGC (automatic gain control), 105-106, Avidor, D., 615, 622 1125, 1147 AWGN (additive white Gaussian noise), Ahlswede, R., 1143 AJ (anti-jam) performance, 1087 AJ (anti-jam) protection, 1034 Alarm systems, 1161-1162 Bac, F., 55 Albert, A. A., 107, 108 Bacon, J., 60 Albert, G. E., 868, 870, 872 Bagley, G. D., 104 Alem, W. K., 763 Balance property, 287 ALOHA random access scheme, 1109, 1116 Balanced modulators, 105 Ambiguity function, 32 Band multitone jamming of FH/MFSK AMPS (analog cellular radios), 1160, 1170 signals, 481-482 AN/ARC-50, 73, 108-111, 124 with coding, 484-493 AN/ART-3, 50 with coding and diversity, 569-600 AN/ARW-4, 60, 66 with concatenated coding, 565-568 AN/CRW-8, 60 with convolutional coding, 547-550, Analog cellular radios (AMPS), 1160, 1170 553-562 Antenna diversity, 1208 with diversity, 512-535, 664-666 Antenna elevation angle, 1034 