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文中提出了一种TD-SCDMA多载波信号采样滤波的快速滤波方法。该方法优化了传统的多载波滤波方法,将TD-SCDMA多载波信号特点和滤波器组理论相结合,具有传统滤波方法相同的性能,但运算复杂度不到传统方法的一半。这种快速滤波方法具有运算复杂度低,可并行和可先下采样再滤波的优点,适合硬件实现,可以用于TD-SCDMA多载波接收机的低功耗设计。
In this paper, a fast filtering method of TD-SCDMA multi-carrier signal sampling filter is proposed. This method optimizes the traditional multi-carrier filtering method. Combining the characteristics of TD-SCDMA multi-carrier signal and the filter bank theory, it has the same performance as the traditional filtering method, but the computational complexity is less than half of the traditional method. This fast filtering method has the advantages of low computational complexity, parallelism and first downsampling and re-filtering. It is suitable for hardware implementation and can be used for low-power design of TD-SCDMA multi-carrier receiver.