| 摘要 |
A method for estimating the noise's space correlated characteristics of a time slot CDMA system includes such steps as estimating the channel of received signals for each antenna of the antenna array to obtain its original result, in which contains the values of P taps, P is the period of basic code for channel estimation; separating the signal response component and the noise response component from the original channel estimation result to get the noise response matrix of antenna array, and making correlation operation with the noise response matrix to obtain the noise space correlated matrix. By using the characteristics of CDMA system channel estimation, this invention provides an estimation method of noise space correlated characteristics in time slot CDMA system. This method is simple and effective, and it has good value stability, thereby it provides good estimation performance in practical S/N range of the system. |
