PCI設計指南The Xilinx LogiCORE PCI interface is a fully verified, pre-implemented
PCI Bus interface. This interface is available in 32-bit and 64-
bit versions, with support for multiple Xilinx FPGA device families. It
is designed to support both Verilog-HDL and VHDL. The design
examples in this book are provided in Verilog.
Use
the fast Fourier transform function fft to analyse following signal. Plot the original signal, and the magnitude of its
spectrum linearly and logarithmically. Apply Hamming window to reduce the
leakage.
.
The hamming window can be coded in Matlab as
for n=1:N
hamming(n)=0.54+0.46*cos((2*n-N+1)*pi/N);
end;
where
N is the data length in the FFT.