User's Manual Part 1

T ECHNICAL D OCUMENTATION P ROTECTING P EOPLE AND A SSETS
®
D
ATE
:
27
M
ARCH
2017
|
V
ERSION
:
1.8
13
R
ANGER
®
-
X5
R
ADAR
S
YSTEM
(M
OBILE
)
F
UNCTIONAL
O
VERVIEW AND
T
HEORY OF
O
PERATION
EEC
®
|
C
OMPANY
P
ROPRIETARY
Figure 6. IQ2-DSP Computer (134119-100)
1.
Power Switch
2. Power Indicator
3. DVD Drive
4. J7 - Fiber-Optic Connect
5. J8 – Ethernet
6. J6 – Antenna Serial Anglers
7. J10 – PCIe Connect
8. J1 – GPIO
9. J2 – Waveform Generator (Primary)
10. J3 – Waveform Generator (Secondary)
11. J4 – Trigger Output
1.1.2.1. IQ2 Host Computer (Unit 1 A2 A1)
The IQ2-DSP Host Computer is equipped with a powerful, state-of-the-art, signal processor that
receives In-Phase and Quadrature (I/Q) data from the IQ2-IFD coming in real time. The Signal
Processor elaborates the real-time I/Q data to create the required single and dual polarization
meteorological moments.
The IQ2-DSP consists of a PCIe communications card plugged into a high-speed server. The
PCIe card receives the high-speed optical link from the IQ2-IFD, passes this data to the high-
speed server for the processing of meteorological moments, and provides additional interfaces
that may be required to support other radar-site systems.
The IQ2-DSP Host Computer processes the I/Q data stream, already broken into range-gate
intervals, with floating-point algorithms to provide all required moments. The server also provides
all the configuration and control signals to all of the components in the IQ2-DSP system.
The IQ2-DSP Host Computer is a Linux based standard industrial PC. The standard mode of
operation is the well-defined, proven pulse-pair method of Doppler radar data processing that
produces the standard data moments of:
• Uncorrected Reflectivity (U)
• Corrected Reflectivity (ZH)
• Vertical Reflectivity (Zv)
• Velocity (V)
• Spectrum Width (W)