A Digital Backend Architecture for Fourier Imaging
A Digital Backend Architecture for Fourier Imaging
A Digital Backend Architecture for Fourier Imaging
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Quantization<br />
41<br />
From 35.32 (x2) to 4.3 (x2), quant_fft 32 bit<br />
quant_fft<br />
a0c0, a0c1, …, a0c1023, a1c0, a1c1, …, a7c1023<br />
a8c0, a8c1, …, a8c1023, a9c0, a9c1, …, a15c1023<br />
a16c0, a16c1, …, a16c1023, a17c0, a17c1, …, a23c1023<br />
a24c0, a24c1, …, a24c1023, a25c0, a25c1, …, a31c1023<br />
t 0 t 1 t M<br />
F engine<br />
2<br />
t M 2<br />
+1 t M 2<br />
+2 t M<br />
2<br />
∗ 8