| 摘要 |
PROBLEM TO BE SOLVED: To provide a spread spectrum signal receiver for demodulating a received spread spectrum signal, capable of reliably acquiring a phase of a pseudo noise code superimposed in the received signal, with a small scale circuit and at lower power consumption.SOLUTION: A spread spectrum signal receiver includes: a mixer 51 for mixing a spread spectrum signal with a carrier phase signal of an in-phase component; a mixer 52 for mixing the spread spectrum signal with spread spectrum signal of a quadrature-phase component; an integrator circuit 54 for integrating an output of the mixer 51; an integrator circuit 56 for integrating an output of the mixer 52; an addition processing part 57 for performing addition processing of outputs of the integrator circuits 54 and 56; and correlation calculation series circuits 59, 60, 61, 62 including a shift register 58, for calculating a correlation between an output of the addition processing part 57 and a predetermined code. |
