1. Overview This document gives the RF test report of Zencheer SDR-B1 SDR platform, which can be used by customers to evaluate whether SDR-B1 can meet their own needs. SDR-B1 is implemented using Xilinx Zynq XC7Z045 and ADI AD9361/AD9363. 2. Test Equipments NI PCIe-5644R GWINSTEK GPD-3303S 3. Test Software Matlab R2024a (ADALM-PLUTO Radio Support...
AD9361 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...
Implementation 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...
Research 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 ,...
Understanding digital baseband signals
With the development of Zencheer's business and the deepening of R&D work, we have come into contact with more and more demands for SDR products, especially for boards with chips such as FPGA + AD9361. Before carrying out corresponding research and development work, we have done a lot of preparatory work. The first thing...