Jason Pennington

I've worked in 4G and 5G communications, including Multiple-Input Multiple-Output communications which 4G and 5G are built on. I mostly work in the physical layer so schemes like Orthogonal Frequency Division Multiplexing and the other variants such as OFDMA and SC-FDMA. With these technologies there are some smaller building blocks that I am well versed in such as frequency mixing and filtering. Some slightly more advanced concepts like autocorrelation and correlation. I have experience with QR decomposition and LU decomposition.

I have designed from scratch many systems that include signal processing on an FPGA. The most interesting is a recent technology from Xilinx in which the ADCs and DACs are on the same silicon as the FPGA and an ARM processing. This platform is known as the RFSoC. I have experience on mostly Xilinx FPGAs but I have used Altera FPGAs in the past. In 2015 I taught a course that used an Altera FPGA in which we covered the basics of VHDL programming. I have experience in developing SPI controllers for off-chip communication as well as DDR Controller to save off a lot of data for future use.

Most of my experience in Python is to test my VHDL code. I use an automated methodology to generate stimulus and compare results. This type of programming is more scripting experience than true object-oriented programming. I have developed some small games in Python. These games are used for teaching high school students the fundamentals of personal finance.