  In this paper, a real-time 105-channel data acquisition platform based on
FPGA for imaging will be implemented for mm-wave imaging systems. PC platform
is also realized for imaging results monitoring purpose. Mm-wave imaging
expands our vision by letting us see things under poor visibility conditions.
With this extended vision ability, a wide range of military imaging missions
would benefit, such as surveillance, precision targeting, navigation, and
rescue. Based on the previously designed imager modules, this project would go
on finishing the PCB design (both schematic and layout) of the following signal
processing systems consisting of Programmable Gain Amplifier(PGA) (4 PGA for
each ADC) and 16-channel Analog to Digital Converter (ADC) (7 ADC in total).
Then the system verification would be performed on the Artix-7 35T Arty FPGA
with the developing of proper controlling code to configure the ADC and realize
the communication between the FPGA and the PC (through both UART and Ethernet).
For the verification part, a simple test on a breadboard with a simple analog
input (generated from a resistor divider) would first be performed. After the
PCB design is finished, the whole system would be tested again with a precise
reference and analog input.
