FPGA Implementation of Real-Time Compressive Sensing with Partial Fourier Dictionary

Table 2

Comparison between proposed approach and some other works.

	Size of dictionary	Sparsity	Frequency (MHz)	Time	Accuracy	Data format
FPGA Virtex-5 [18]		5	39	24 s	—	32-bit fixed point real data
FPGA Virtex-6 [22]		12	100	158.7 s	—	18-bit fixed point real data
Kintex-7 [24]		≤320	53.7	μs	—	Single-precision real data
NVIDIA GTX480 [39]		64	—	15 ms	—	—
Intel Core i7 [9]		12	3000	25 ms		Single-precision real data
Intel Core DUO [40]		5	2800	606 s	—	32-bit fixed point real data
FPGA Virtex-7; This work		5; 12	165	18.3 s; 391.8 s		Single-precision and fixed-point hybrid complex data