Active code detection method and active code detection device

The invention provides an active code detection method and an active code detection device. The device comprises a signal acquisition unit, an equalizing unit, a de-spreading unit, an estimation unit and a code power comparison module, wherein the signal acquisition unit is used for receiving a user receiving signal and acquiring an acquisition signal; the equalizing unit performs equalizing processing on the acquisition signal to output an equalizing signal; the de-spreading unit performs de-spreading processing according to the equalizing signal to generate a de-spreading signal; the estimation unit obtains the code powers of a user equipment code and a non-user equipment code according to the de-spreading signal; and the code power comparison module performs code comparison so as to obtain the active code from the non-user equipment code, and outputs the active code to a joint detection module to perform joint detection processing. By using the active code detection method and the active code detection dev