Signal receiving device for measuring characteristic of wireless communication channel, and method of measuring characteristic of wireless communication channel

摘要

A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.

主权项

1. A signal receiving device configured to measure a characteristic of a wireless communication channel, the signal receiving device comprising:
an analog signal processor configured to:
generate a band-limited signal by decreasing an intensity of an image signal having an image frequency, the image signal being included in a correlation operation result signal, the correlation operation result signal being a result of correlation operation performed on a received signal and a pseudo random noise code signal, andgenerate an intermediate frequency signal by transforming the band-limited signal based on a carrier frequency having an intermediate frequency; an analog-digital converter configured to convert the intermediate frequency signal into a digital signal; and a digital signal processor configured to:
generate a demodulated signal by performing in-phase and quadrature-phase demodulation on the digital signal, the demodulated signal including a baseband signal and repeated signals, the baseband signal including a direct current (DC) component, the repeated signals being repeated at constant frequency intervals with a same bandwidth as the baseband signal, andgenerate an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.