Operating Manual

Two 16-bit ADC run at 25 MSPS and feed a FPGA in two streams. These
streams represent two orthogonal polarizations that are used to generate all of
the downstream products. Initial computations are accomplished in the gate
array and processor and then packaged for transmission to the host computer.
Calibration, data reduction, initial product generation and encryption is
accomplished in each radar.
In addition, the data acquisition system samples local weather (temperature,
humidity and ambient air pressure) as well as GPS data for use in timing and
positional information. All these data are sent to the host computer.
The FPGA accomplishes polarization discrimination and initial reflectivity
measurements in addition to initial Doppler calculation.
Computer:
A multi-core NVIDIA GPU is used for data transfer, encryption and manipulation
of the two polarimetric streams. Data is sent from this computer via Ethernet and
Internet to a host server. Products are generated within this server and made
available to users via a client application.
Power Supplies
There are two commercial grade power supplies contained within the radar
enclosure. Both are rated at operations from -30C to +50C temperature range.
Each has self-test features and significant voltage and amperage protections to
guarantee long life and dependability. Input filters on all outside power as well as
Ethernet are included in the radar enclosure. System voltages are continuously
monitored.