RF detector is a multiple receiver system with parallel synchronized computing engines.
- Data from all engines are combined into a 3-D matrix, similar to a data cube.
- The detector operates over the entire frequency band of the signal of interest.
- Wideband multichannel receiver system.
- Detections of all signal bursts at different center frequencies occur simultaneously.
- Enhance detection and angle-of-arrival estimation even further provided that the receiver knows the nature of these sync information.
- Algorithm has been successfully tested for a number of sophisticated drone communication links.
Prototype Summary:
8 element Antenna System:Arranged as a 4×2 planar array. 4 elements along azimuth and 2 elements along elevation axes.
Signal (IF) Bandwidth:200 MHz (max). Programmable to accommodate the entire target frequency bandwidth.
Frequency of Operation:1 to 6 GHz. The focus will be on 2.4 GHz and 5.8 GHz ISM bands.
Elevation Beam Resolution:4 to 6 degrees (TBD).
Azimuth Beam Resolution:4 to 6 degrees (TBD).
1st IF and Baseband Processing Platform:Xilinx ultra scale+ RFSoC board. Available from many vendors. The platform also includes a dual ARM
processor for system control and offline calculations.
Processing:Most processing modules, i.e., data-cube formation, signal processing, and detection, initially will be done on the ARM processor for testing and debugging convenience. The algorithms will then be moved into FPGA to decrease processing time (next phase).
System Parameters and Detection Report:APC (laptop), via an ethernet link, will set up the system parameters and will receive and display the detection results.
Xilinx ZCU Platform:Currently, we are using this platform to test and implement some of the front-end circuits and processing modules (see picture on the right).
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