Sdr

*Released July 16, 2023*

Changes

- Added finite impulse response (FIR) filters in `sdr.FIR`.
- Added pulse shapes: `sdr.raised_cosine()`, `sdr.root_raised_cosine()`, `sdr.gaussian()`.
- Added plotting helper functions in `sdr.plot`:
- `sdr.plot.time_domain()`
- `sdr.plot.periodogram()`, `sdr.plot.spectrogram()`
- `sdr.plot.filter()`, `sdr.plot.frequency_response`, `sdr.plot.group_delay()`,
`sdr.plot.impulse_response()`, `sdr.plot.step_response()`, `sdr.plot.zeros_poles()`
- Added measurement functions: `sdr.papr()`, `sdr.crest_factor()`.
- Added bit packing and unpacking functions: `sdr.pack()`, `sdr.unpack()`.
- Added hexdump helper function in `sdr.hexdump()`.
- Improved type annotations.

Contributors

- Matt Hostetter ([mhostetter](https://github.com/mhostetter))

*Released July 9, 2023*

Changes

- Added Farrow arbitrary resampling in `sdr.FarrowResampler`. ([1](https://github.com/mhostetter/sdr/pull/1))
- Added infinite impulse response (IIR) filters in `sdr.IIR`. ([3](https://github.com/mhostetter/sdr/pull/3))
- Added numerically-controlled oscillators (NCO) in `sdr.NCO`. ([4](https://github.com/mhostetter/sdr/pull/4))
- Added direct digital synthesizers (DDS) in `sdr.DDS`. ([4](https://github.com/mhostetter/sdr/pull/4))
- Added 2nd order, proportional-plus-integrator loop filters in `sdr.LoopFilter`. ([4](https://github.com/mhostetter/sdr/pull/4))
- Added closed-loop PLL analysis in `sdr.ClosedLoopPLL`. ([5](https://github.com/mhostetter/sdr/pull/5))

Contributors

- Matt Hostetter ([mhostetter](https://github.com/mhostetter))