Weather_Radar_System_Update_for_Compliance.docx

Weather Radar System Update for Compliance (Brand Name or Equal):

Update shall include the procurement and installation of the following components that shall be compatible with our current Baron Services Inc. 300 kW X-band Polar Weather Radar system and the Red Hat Enterprise Linux 7 operating system. That system includes the pedestal/antenna (Orbit Model: AL-4018-1D5M Elevation over Azimuth Antenna Positioner), tunable pulsed magnetron with a frequency range of 9400-9600 MHz and transmitter (Communications & Power Industries (CPI) Beverly Microwave Division VMX346), Intermediate Frequency Digitizer (Enigma IV-DS), receiver, and built-in test equipment (BITE) from Baron Services Inc.

Pedestal/Antenna elevation can go from -5 degrees to +185 degrees, as it can complete hemispheric RHI scans, has a scan rate of up to 36 degrees per second and azimuth movement is 360 degrees continuous with the ability to point in a specific azimuth as well.

1. Radar Signal Processor (RSP) and/or Intermediate Frequency Digitizer (IFD) The IFD and/or RSP shall be compatible with current hardware on the weather radar else, that hardware shall be included in the cost.

It shall include at least five signal channel analog/digital converters with 16 bit sampling for dual pol operation Polarization is single: horizontal; and dual: STAR, horizontal-only IF Frequency of 60MHz At least 4000 range bins per channel A minimum range resolution of 25 meters Processing modes for the signal processor shall include FFT, DFT, DPRT, and PPP.

Selectable IIR filter coefficients of at least 40dB and 50dB.

Filter width shall be adjustable and adaptable.

Clutter filters will be spectral.

Clutter filters for interference.

Clutter filters for sun spokes Ground clutter suppression Second Trip processing/filtering Speckle Removal Ability to configure thresholds – parameters and values, combined and alone Clutter filters frequency domain with > 45 dB clutter rejection Attenuation Correction

Shall include at least 4 pulse widths with a minimum of at least 0.4 uSec and a maximum of at least 4.0 uSec. Those shall also include matched filters or equivalent.

Dual PRF stagger modes of None, 2/3, 3/4, and 4/5.

2. Radar Product Generator (RPG) Data Outputs:

Corrected Reflectivity (Zh, Zv, Z) Uncorrected Reflectivity (UZh, UZv, UZ) Attenuation Corrected Reflectivity (AZh, AZv, AZ) Radial Velocity (Vh, Vv, V) Uncorrected Radial Velocity (UVh, UVv, UV) Folded Radial Velocity (VFh, VFv, VF) Uncorrected Folded Radial Velocity (UVFh, UVFv, UVF) Spectral Width (Wh, Wv, W) Uncorrected Spectral Width (UWh, UWv, UW) Differential Reflectivity (ZDR) Uncorrected Differential Reflectivity (UZDR) Attenuation Corrected Differential Reflectivity (AZDR) Polarization Ratio (LDR H-transmit) Uncorrected Polarization Ratio (ULDR) Specific Differential Phase (KDP) Propagation Differential Phase (PHIDP) Uncorrected PHIDP (UPHIDP) Cross Correlation Coefficient (RHOHV) Uncorrected Cross Correlation Coefficient (URHOHV) In Phase / Quadrature Signal (Ih, Iv, I, Qh, Qv, Q) Clutter Power (CCORh, CCORv, CCOR) Signal Quality Index (SQIh, SQIv, SQI) Signal Noise Ratio (SNRh, SNRv, SNR) Power spectrum DFT

Data Formats:

Most recent NEXRAD Level II data format Universal Format Raw data without clutter filters applied to be viewable in either HDF5 or some other easily viewable open-source format

3. Radar Control Processor (RCP) Local and Remote Remote System Shall have the ability to remotely and locally operate all components of the weather radar system. This includes the pedestal, transmitter, receiver, and BITE.

Shall have the ability to remotely and locally schedule volume scans, PPI scans, RHIs, calibrations, and performance checks.

Remote and local radar control processors will be synced and communicating with each other via TCPIP Radar outputs and data files shall be saved and accessible on the systems.

Remote and local radar control processors will have the ability to view real-time data for troubleshooting issues with the weather radar system as it is operating.