RADIO COMMUNICATION DEVICE IN MULTI-INPUT SYSTEM AND CHANNEL ESTIMATION AND SEPARATION METHOD

摘要

In radio communication device in a multi-input system, frequency response of a reception signal is estimated by a high-speed Fourier transform and converted into an impulse response of a temporal region. By using a Window function having a simple Low pass filter characteristic, calculation is performed. The window function having a Low pass filter characteristic can be calculated comparatively easily and the affect from the channel statistical characteristic is also small. Thus, it is possible to simultaneously realize separation of channel impulse response of multi-antenna and channel estimation of high accuracy.