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В кластер входят документы, описывающие техническую реализацию и архитектуру аппаратных и программно-определяемых радиоприемников.
Общие признаки: проектирование Software Defined Radio, аппаратная реализация цифровой обработки сигналов, использование FPGA, создание кастомных радиоприемников
Группа выше: Программно-определяемое радио (SDR)
Смысл: The text is a technical guide and project retrospective on implementing a basic SDR receiver using an FPGA to perform digital signal processing (DDC), demonstrating how to bridge analog RF signals to software-based analysis via custom hardware and networking logic.
A detailed technical walkthrough of building a Shortwave SDR receiver using an Altera DE0-Nano FPGA, featuring custom DDC logic and Ethernet data transmission.
Смысл: The text explains how to transition an SDR receiver from a PC-dependent system to a standalone device by implementing complex DSP functions (mixing, filtering, and demodulation) and a user interface (VGA/FFT) directly within an FPGA's hardware resources.
A technical guide on building a standalone SDR receiver using an FPGA board, featuring on-chip demodulation, a VGA spectrum display, and NIOS II processor control.
Смысл: The text serves as a technical guide and announcement for a custom-built wideband SDR receiver that optimizes hardware by bypassing the need for an FPGA, aiming to provide radio-hackers and researchers with a powerful, compact tool for spectrum monitoring.
The author developed a compact, high-bandwidth SDR receiver using the AD9363 transceiver and USB 3.0 controller, eliminating the FPGA to simplify the design while maintaining GNURadio compatibility.
Смысл: The main idea is to demonstrate the possibility of extracting low-level digital samples from a legacy GPS hardware front-end to implement a Software Defined Radio (SDR) receiver, thereby bridging the gap between hardware signal capture and software-based coordinate calculation.
The author successfully hacked an old Globalsat BT-318 receiver by adding custom comparators and an FPGA to stream raw GPS samples to a PC for processing via GNSS-SDRLIB and RTKLIB.
Смысл: The main idea is to demonstrate that a high-performance Web-SDR receiver can be built using recycled industrial hardware (Antminer S9) and low-cost components, providing a fully open-source alternative to proprietary or expensive SDR platforms.
A detailed technical guide on building a highly affordable Web-SDR receiver by combining a recycled Antminer S9 Zynq board with a custom-made ADC circuit and a Linux-based software stack.
Смысл: The main idea is to demonstrate the practical implementation of a short-range radar system using Software Defined Radio (SDR) and phased array hardware. It aims to teach the fundamental differences between pulsed, CW, and FMCW radars while providing a scalable hardware path for DIY enthusiasts to experiment with drone detection and signal processing.
A technical walkthrough on building a UAV tracking radar using the PHASER platform, covering the transition from simple Doppler velocity measurement to FMCW range detection.