17 lines
1.1 KiB
Plaintext
17 lines
1.1 KiB
Plaintext
* (experiment) make nice plot of baseband distortion due to IF filtering
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* (experiment) consider downsampling IF signal before FM detection
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* (experiment) measure effect of IF gain on baseband SNR
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* (experiment) measure effect of IF gain linearity on baseband SNR
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* (experiment) measure effect of RTL AGC mode on baseband SNR
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* (experiment) try if RTL AGC mode improves FM decoding
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* (feature) support 'M' 'k' suffixes for sample rates and tuning frequency
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* (feature) implement off-line FM decoder in Python for experimentation
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* (feature) implement stereo pilot pulse-per-second
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* (speedup) maybe replace high-order FIR downsampling filter with 2nd order butterworth followed by lower order FIR filter
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* figure out why we sometimes lose stereo lock
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* it looks like IF level sometimes varies so much that it saturates the receiver; perhaps this can be solved by dynamically managing the hardware gain in response to level measurements
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* (quality) figure out if hardware gain settings can improve weak stations
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* (feature) implement RDS decoding
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* (quality) consider FM demodulation with PLL instead of phase discriminator
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