1.9 KiB
1.9 KiB
PROJECT: SDR Suite Lisp (Universal Literate Note)
- Overview
- Phase A: Demand (PRD)
- Phase B: Blueprint (PROTOCOL)
- Phase D: Build (Implementation)
- Phase E: Chaos (Verification)
Overview
The SDR Suite Lisp project aims to develop a comprehensive Software Defined Radio environment using Common Lisp. It leverages the high-performance, threaded nature of SBCL to provide real-time signal processing across various domains, from satellite communication to passive radar and computer networking.
Phase A: Demand (PRD)
1. Purpose
Define the functional and technical requirements for a Lisp-native SDR architecture.
2. User Needs
- Real-time Signal Processing: High-performance DSP loops in Common Lisp.
- Multimodal Support: Unified framework for EME, ALE, SSTV, and standard Rx (FM/AM).
- Extensibility: Modular "plug-and-play" architecture for new decoders and protocols.
- Hardware Agnostic: Support for RTL-SDR, HackRF, and high-end FPGA-based SDRs.
3. Success Criteria
TODO Core DSP Loop Benchmarking (SBCL)
TODO RTL-SDR Driver Interface (via CFFI)
TODO Basic FM Broadcast Decoder Implementation
TODO Spectral Waterfall Visualization Stubs
Phase B: Blueprint (PROTOCOL)
1. Architectural Intent
Interfaces for IQ stream processing and protocol dispatch. Source of truth is the physical signal and the DSP mathematical specifications.
2. Semantic Interfaces
(defun sdr-perceive-stream (source-id buffer-size)
"Initializes the IQ sample stream from the hardware source.")
(defun sdr-decode-fm (iq-samples)
"Applies de-emphasis and filtering to extract audio from IQ data.")Phase D: Build (Implementation)
Current implementation status is "Architecture Research." Placeholder for CFFI bindings and DSP libraries.
Phase E: Chaos (Verification)
Verification involves signal fidelity audits and real-time latency testing under various CPU loads.