Restores sharp target peaks and improves signal clarity in Shenron radar outputs
by optimizing windowing functions and disabling smoothing-heavy interpolation.
- radar_processor.py: Switched windowing from Hann to Blackman-Harris for range
and velocity processing to achieve deeper sidelobe rejection (-92 dB) and
suppress horizontal artifacts.
- test_shenron.py: Replaced 'bicubic' interpolation with 'nearest' for Range-Doppler
(RD) and CFAR maps to restore diagnostic clarity and prevent target blurring.
- config.yaml: Removed hardcoded RD plot limits (xRange/yRange) to ensure the
renderer utilizes the true physical axis (e.g., ±26.8 m/s) derived from hardware specs.
- Added technical comments explaining the trade-off between main-lobe width and
dynamic range in the new DSP windowing.