Patent ID: 7664163
Filing Date: 2010-02-16
Classification: H04B

Abstract:
1. A receiver that receives each of pulse signals spread by spread codes, comprising: an RF front-end section which performs filtering and amplification on each received signal; an AD converter section which analog-digital converts signals outputted from the RF front-end section; a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon; a reception environment measuring section which measures reception environment constituted by components of the receiver using signals inputted to the baseband section prior to a start of a receiving operation of receiving said each of pulse signals; a parameter setting section which sets parameters for the RF front-end, analog-digital converter and baseband sections of the receiver on the basis of output signals of the reception environment measuring section, said parameters being used to compensate for amplitude and phase shifts caused by the reception environment; and a mode controller for controlling operation modes of the baseband section, wherein the baseband section includes: respective blocks for an offset/gain adjustment unit; a matched filter unit; an input signal adjustment unit; a synchronous trapping unit; a data holding timing controller; a data holding unit; a demodulator; a synchronous tracking unit; and a sampling timing controller, and wherein operating/non-operating states of the respective blocks in the baseband section are respectively controlled by control circuit units provided in each of the respective blocks according to the operation modes.