Safran Skydel Wavefront Software-defined CRPA Test System

The Safran Skydel Anechoic allows users to accurately simulate real-world GNSS environments in their Anechoic Chambers. Skydel Anechoic has 32 individual RF outputs enabling the system to drive 16 dual-frequency antennas. Revolutionary features like automatic antenna mapping, automatic time delay calibration, and automatic power loss calibration are what make Skydel Anechoic the most advanced Anechoic Chamber simulator on the market today.

Safran Skydel Anechoic was designed from the ground up for the user, by users. An easy to use software environment and thoughtful hardware supports engineers during all phases of their testing. The built-in spectrum analyzer can be connected to any one of the 16 RF output chains through a quick connect RF connector, allowing the user to verify the signals going to the antenna. The 48dB transmit chain amplifier and 80dB transmit chain dial attenuator allow for complete signal control and high dynamic range. The Safran Skydel Anechoic System cuts calibration times from days to minutes. All aspects of the Skydel Anechoic system were made to enable better, faster, and lower cost testing.

Specs

• 16 Transmit Chains
  • 48 dB amplifier
  • 80 dB variable attenuator
  • -18 dB monitor port
• RF Outputs/Signals:
  • • GPS Open Codes: L1-C/A, L1C, L1-P, L2-P, L2C, L5;
    • Galileo: E1, E5a, E5b, E6 HAS
    • BeiDou: B1, B2
    • GLONASS: G1, G2;
    • NavIC;
  • QZSS;
  • SBAS: L1, L5
  • Custom Signals
  • 16 bit IQ
  • 50 MHz bandwidth

Automatic Antenna Mapping

Signals are automatically mapped to the correct transmit chain based on user specified antenna locations.

Automatic Power Loss Calibration

Automatically calibrates the power loss of each transmit chain.

Automatic Time Delay Calibration

Automatically calibrates the time delay of each transmit chain.

Scalable Software-Defined Architecture

GSG Anechoic takes advantage of state-of-the-art software defined radios (SDR) for RF up-converting while signal IQ generation uses high performance commercial[1]off-the-shelf (COTS) graphics-processing units (GPU). The ability to generate the IQ data in software (using the GPU) as opposed to hardware (FPGA) significantly reduces the cost while maximizing capability, value and time to market.

For more information: Safran

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