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IWR6843AOP: HAW的FFT运算结果与matlab有较大差异,有什么办法处理吗?

Part Number: IWR6843AOP
Other Parts Discussed in Thread: AWR1642

你好,

我采用了mmwave_sdk_03_06_00_00-LTS\packages\ti\drivers\hwa\test\common中的1dFFT_in.h文件作为输入数据在Matlab中进行运算,得出的结果与1dFFT_out.h进行对比幅值有较大差异,频谱的分布规律几乎一致。

我需要在matlab中实现与mmwave_sdk_03_06_00_00-LTS\packages\ti\drivers\hwa\test的demo一样的输出结果,是否有其它可参考的例子?

另外,HWA的FFT过程中涉及的运算是纯整数的还是含有小数的?如果含有小数,那么定点数的格式是怎么样的?