The NI GPS Toolkit for LabVIEW, from National Instruments (Nasdaq: NATI), is an extension of the graphical system design environment that expands the NI RF PXI platform to include multi-satellite GPS signal simulation. Using NI LabVIEW software to create waveforms that simulate up to 12 satellites (C/A codes in the L1 band), engineers can test receiver characteristics such as sensitivity, time to first fix (TTFF) and position accuracy with the NI PXIe-5672 RF vector signal generator. NI GPS Toolkit for LabVIEW is priced from $1,999; EUR 1,949; Yen 284,000.
NI GPS Toolkit for LabVIEW Features
- Generation of C/A codes in L1 band
- Simulation of up to 12 simultaneous satellites
- Automatic satellite simulation from almanac and ephemeris files
- Simulation of receiver mobility through Doppler shift (X, Y, and Z axis velocity)
- Ability to choose receiver’s longitude, latitude, and altitude
- Manual control of satellite pseudorange, Doppler, and power-level information
With the new toolkit, engineers can use a combination of simulated and recorded GPS waveforms as a comprehensive, low-cost solution for receiver design validation and verification. By recording live GPS signals off the air with an NI PXI-5661 RF vector signal analyzer and an NI PXI-5690 pre-amplifier (low-noise amplifier), engineers can capture GPS signals with natural impairments that a receiver would observe in the real world. Engineers also can generate both simulated and recorded signals with the NI PXIe-5672 RF vector signal generator, by continuously streaming GPS waveforms from hard disk. With a 2 TB redundant array of inexpensive disks (RAID) hard drive option, engineers can generate up to 12.5 minute of non-repeating simulated waveform or 25 hours of continuous recorded GPS signal to test how the receiver responds to a broad range of circumstances.
More information: NI GPS Toolkit for LabVIEW (pdf)