CDMA, W-CDMA, 3rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems

摘要

Receivers and demodulators, including smart diversity receivers, receive adaptive antenna arrays and receive adaptive equalizers are described in this invention. Spectral efficient quadrature modulated transmitters-receivers (transceivers), high performance Bit Rate Agile (BRA) modulation-demodulation (Modem) methods and integrated Modems/Transceivers suitable for operation over Non-Linearly Amplified (NLA) power efficient RF systems for enhanced performance and increased capacity bandwidth efficient wireless, PCS, cellular CDMA, TDMA, GSM, OFDM and other efficient communications, broadcasting and telemetry systems are described. Bit Rate Agile (BRA) quadrature demodulators are disclosed. The described receivers are particularly suitable for reception and demodulation of spectral efficient Feher's Quadrature Phase Shift Keying (FQPSK), Feher's Quadrature Amplitude Modulation (FQAM), Feher's Gaussian Minimum Shift Keying (FGMSK) and Feher's Minimum Shift Keying (FMSK) signals. Bit rate and RF agile cascaded mis-matched (ACM) demodulation filters Miss-Matched (MM) to that of the modulator filters, Modem Format Selectable (MFS) and Code Selectable (CS) methods for tunable RF frequency embodiments are described. The 2nd generation of FQPSK systems with Adaptive Antenna Arrays (AAA), Pseudo-Error (PE) based Non-Redundant Error Detection (NRED) and PE controlled IF adaptive Feher Equalizers (FE) and smart diversity systems has additional enhanced spectral/RF power efficiency and end-to-end performance advantages.