3 from gnuradio import gr
5 class my_top_block(gr.top_block):
7 gr.top_block.__init__(self)
11 data_r = range(length)
12 data_i = range(length,2*length)
13 src_r = gr.vector_source_s(data_r, False)
14 src_i = gr.vector_source_s(data_i, False)
15 s2f_r = gr.short_to_float()
16 s2f_i = gr.short_to_float()
17 f2c = gr.float_to_complex()
18 s2v = gr.stream_to_vector(gr.sizeof_gr_complex, length)
21 ifft = gr.fft_vcc(length, False, [], shift)
22 fft = gr.fft_vcc(length, True, [], shift)
24 v2s = gr.vector_to_stream(gr.sizeof_gr_complex, length)
25 snk_in = gr.file_sink(gr.sizeof_gr_complex, "fftshift.in")
26 snk_out = gr.file_sink(gr.sizeof_gr_complex, "fftshift.out")
28 self.connect(src_r, s2f_r, (f2c,0))
29 self.connect(src_i, s2f_i, (f2c,1))
30 self.connect(f2c, snk_in)
31 self.connect(f2c, s2v, ifft, fft, v2s, snk_out)
39 if __name__ == "__main__":
42 except KeyboardInterrupt: