The Panoradio SDR
The Panoradio is a tech-demo for modern software defined radio (SDR), that shows what is possible with today’s technology in AD conversion, signal processing and …
Category: The Panoradio
Powerful Hardware for SDR: The Zynq and the Zedboard
This an excerpt of my more extensive paper on Xilinx’s Zynq System-on-Chip for Software Defined Radio processing from 2018: “The Xilinx Zynq: A Modern System …
Panoradio Reception Examples: From Long Wave to UHF
The Panoradio offers direct sampling reception from medium wave bands to the VHF region up to 100 MHz, as well as reception of the 70 …
Analog Frontend
The analog frontend of the Panoradio prepares the analog signal from the antenna for analog-to-digital conversion. This includes filtering and amplification. The Panoradio offers three …
Analog-to-Digital Converter: AD 9467
The AD converter is the heart of every direct sampling receiver. Its properties are crucial for the overall receiver performance. This is because once the …
Zoom FFT with Digital Down-Conversion
SDRs typically implement “zoomable” spectrum or waterfall displays. The signal processing behind that feature is called zoom FFT. It combines a flexible digital down converter …
Audio Receiver: DDC and SSB Demodulation
Digital Down Converter The audio digital down converter (DDC) follows the basic principle of the Panoradio’s waterfall DDC with the exception, that the CIC has …
Panoradio Software, FPGA and OS Implementation
Linux OS The dual core ARM A9 processor runs the Linux operating system Linaro (Ubuntu, optimized for embedded devices). The OS and filesystems are stored …
Panoradio Source Code
SD Card and Linux Operating System The SD card contains the linux OS and other low-level components, such as the kernel, bootloader, etc. It requires …