| 摘要 |
<p>A method and device for determining effective signal to noise ration (SNR) are provided in the present invention, which can determine the channel correlation matrix estimation value of the measure bandwidth in Orthogonal Frequency Division Multiplexing (OFDM) system, based on the channel estimation result of time frequency sub-channel of pilot frequency location in said measure bandwidth; calculate the channel capacity of time frequency sub-channel of each interference type included in said measure bandwidth respectively using said channel correlation matrix estimation value; obtain the average equivalent channel capacity of each time frequency sub-channel in said measure bandwidth based on said channel capacity of time frequency sub-channel of each interference type; and determine the effective SNR of said measure bandwidth according to said average equivalent channel capacity of each time frequency sub-channel. The method and device of the present invention can obviously reduce the calculation complexity of the effective SNR.</p> |
