| 摘要 |
The problem of simpler user operation of a Multiple Input Multiple Output (MIMO) wireless communication system is solved by a system and method having touch screen operation, which does not require the use of push buttons. A processed location finder signal received from two or more Global Positioning System (GPS) satellite transmitters and from two or more land based transmitters, received in different radio frequency bands is further processed into cross-correlated in-phase and quadrature-phase time division multiple access (TDMA) baseband signal. A signal is processed into a Code Division Multiple Access (CDMA) and an orthogonal frequency division multiplexed (OFDM) signal and into a cross-correlated in-phase and quadrature-phase CDMA signal, wherein the TDMA and CDMA signal is used in a cellular system and the OFDM signal in a wireless system and the cellular system and the wireless system are distinct systems. The modulator comprises a non-quadrature modulator and a distinct quadrature modulator. Multiple transmitters include a first transmit amplifier operated in a first radio frequency (RF) band in a linearly amplified (LINA) mode and a second transmit amplifier operated in a second radio frequency (RF) band with second amplifier operated in a non-linearly amplified (NLA) mode. The system includes a receiver and demodulator for receiving and demodulating a transmitted signal, wherein the receiver includes an antenna array of four or more antennas for receiving a transmitted signal. |
