To provide a spread spectrum communication system that can accurately detect a maximum correlation value without being affected by a frequency error of a reference oscillator by correcting a chip clock phase without using a highly accurate receiver-side reference oscillator.

A control section 25 controls a chip clock phase of a chip clock generator 26 by taking a 2nd synthesizer 13 and a correlation detection section 14 as well as a frequency error into account. A control section 25 stores an accumulated error and advances or delays the chip clock phase every time the accumulated value reaches a predetermined adjustment width to correct the frequency error.