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573536f48f
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fixed scaling for short real
moved fft.py from ./ to sample_code
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2003-12-14 05:13:11 +00:00 |
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559c14b49b
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changed alloc functions to allow for initialization of user-supplied buffer
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2003-12-14 03:02:30 +00:00 |
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ef7f8ff6c0
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getting ready to release version 1.0
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2003-12-11 01:54:42 +00:00 |
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09dbf36e97
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kiss_fftr.c gives correct answers for forward
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2003-12-07 04:04:27 +00:00 |
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39d2974fe3
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'make snr' now tests 2d ffts
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2003-12-04 04:08:52 +00:00 |
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f3c4a9e9ca
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internal checkpoint
split kiss_fft.c into multiple files. It seems the best approach, all things considered.
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2003-12-04 02:38:50 +00:00 |
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206e28f11c
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made the factorization a separate routine
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2003-11-12 01:09:35 +00:00 |
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140f106743
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benchmark utilities now give memory info
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2003-11-08 02:48:02 +00:00 |
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e9095a161c
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generic butterfly slightly slower -- hmmm
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2003-11-07 02:39:49 +00:00 |
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cb5312efdc
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2d fft seems to work
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2003-11-06 03:59:31 +00:00 |
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4ebf0b5aca
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aded a CHANGELOG
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2003-11-04 02:09:53 +00:00 |
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6c8049cc75
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slight changes to Makefile
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2003-11-04 01:01:37 +00:00 |
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3c0c0431e2
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radix 5 works, but is 6x slower than fftw
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2003-11-03 03:03:16 +00:00 |
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85764e6437
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radix 5 doesn't work, but I thik it should.
just a checkpoint commit
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2003-11-01 16:48:33 +00:00 |
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8ac63adc77
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modified time benchmark to repeat same buffer over and over to avoid IO bottlenecks and get more consistent numbers.
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2003-11-01 04:44:50 +00:00 |
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28551899e2
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radix 4 faster
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2003-11-01 03:49:53 +00:00 |
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d4f87befda
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re-added radix 3 butterfly
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2003-10-30 02:02:29 +00:00 |
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ca4c74e07c
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Woops, one should not test with input of all zeros
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2003-10-29 04:29:01 +00:00 |
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1db3d91ee5
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getting ready for next release
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2003-10-26 04:07:32 +00:00 |
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bca7fd5151
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compiles with -ansi -pedantic
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2003-10-18 01:23:34 +00:00 |
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6f8bcedc24
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radix 3 fixed point still broken
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2003-10-17 02:59:32 +00:00 |
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317f11e66e
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starting point for radix 3
'make test' output
### testing SNR for 2187 point FFTs
#### DOUBLE
snr_t2f = 292.51
snr_f2t = 304.97
#### FLOAT
snr_t2f = 143.46
snr_f2t = 138.03
#### SHORT
snr_t2f = 49.257
snr_f2t = 16.294
#### timing 10000 x 2187 point FFTs
#### DOUBLE
Elapsed:0:05.05 user:3.60 sys:0.54
#### FLOAT
Elapsed:0:02.41 user:1.85 sys:0.23
#### SHORT
Elapsed:0:04.02 user:3.13 sys:0.08
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2003-10-17 00:11:19 +00:00 |
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502211bc6a
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broken
working towards mixed radix
decomposition seems to work (for 2)
indices scrambled
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2003-08-16 23:40:14 +00:00 |
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1cd00ce9f5
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simplified testing (hopefully)
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2003-08-13 01:54:21 +00:00 |
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b095bec02d
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NFFT is configurable
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2003-08-12 23:28:01 +00:00 |
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a962dc2681
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took utility/test code out of main source file and moved down to sample_code
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2003-08-10 15:39:15 +00:00 |
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