1. Overview SDR-B1 is a SDR hardware platform launched by Zencheer Communication. It uses Xilinx Zynq XC7Z045 FPGA and ADI AD9361/AD9363. Its size is as small as 59*88mm. It is suitable for applications such as drone networking and broadband data transmission. This document describes the setup process for the SDR-B1 development environment and is...
Continue readingAD9361 TDD state machine analysis and control
Recently, due to product development needs, we have been debugging the AD9361 on Zencheer's SDR platform SDR-A1. This hardware platform uses Xilinx's XC7A100T FPGA, with two MCUs, and has an Ethernet PHY interface. Its hardware architecture is shown in the figure below. The first thing to complete is naturally the configuration of AD9361. We...
Continue readingImplementation of DPSK modulation on AD9361
1 Overview The idea of implementing DPSK modulation on the AD9361 is as follows: first verify the spectrum after DPSK modulation in Matlab, then use a pseudo-random sequence as the original data in the FPGA, and send it to the AD9361 after upsampling, shape filtering, and the AD9361 completes the IQ modulated and ultimately...
Continue readingResearch and design of shaped filters
1 Overview In the process of developing SDR products using the AD9361, in order to compress the spectrum of the digital baseband signal within a certain bandwidth, the shaping filter is obviously an indispensable component. This article gives the design process of the shaping filter, which is not only applicable to the AD9361 ,...
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