DSP for Radio

1. Conceptual Intuition (L1)

• Digital Filtering: Math on sample streams.
• Decimation: Throwing away samples (carefully).
• Interpolation: Creating new samples between old ones.

2. Engineering Math (L2)

• FIR vs IIR filters.
• CIC (Cascaded Integrator Comb) filters for high rate changes.
• Half-Band filters efficiency.

3. System Application (L3)

• Polyphase Filter Banks (efficient channelizers).
• CORDIC algorithm for trig without multipliers.
• NCO (Numerically Controlled Oscillator) implementation.

Interactive Component: Digital Filter Chain

• Description: Watch noise floor drop as you filter and decimate.
• Controls: Decimation Rate, Filter Taps.