在HWA手册中,complexMultiply.mode = Frequency shifter mode时,有提到旋转因子矩阵LUT。
在工程demo中,complexMultiply.mode = DISABLE,没有用到上述LUT矩阵。此时旋转因子是多少,是怎么生成的
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你好,
请问你需要查看Twiddle factor rom内容的原因是?
There is a twiddle factor look-up table in HWA in twiddle factor ROM.
From the HWA user guide:
"...twiddle factor look-up table(LUT). This LUT contains the (compressed) equivalent of the cos, sin values corresponding to the 16384 long sequence exp(j*2*pi*(0:16383)/16384)."
Thanks,
Chris