Aiming at the shortcut of precision and computation complexity of binary integer LBT in DSP implementation,a fixed point algorithm of LBT which fits parallel processing in DSP is proposed.

• 针对二进整数LBT在DSP实现过程中出现的精度和计算复杂度问题,提出了一种适于DSP并行处理的LBT定点实现方法。