Test & Measurement

Waveform generator boosts wideband digital channel simulator

20th October 2014
Mick Elliott
0

An Arbitrary Waveform Generator (ARB) has been added to IZT’s 3040 wideband digital channel simulator.  The generator enables the simulator to emulate other traffic on the satellite transponder, signals in adjacent bands or interference scenarios. With the internal generator memory, the simulator now supports the generation of user-defined signals, for example using MATLAB, which increases its flexibility.

Maximum sample rate of the ARB is 160 MSps, which corresponds to a maximum signal bandwidth of 100 MHz. A user configurable variable sample rate converter allows the use of lower sample rates. The frequency offset and power of the generator signal can be varied through software while the emulation is running.

The IZT C3040 is a wideband digital channel simulator for satellite or unmanned armed vehicle (UAV) data links. It enables system engineers to create realistic scenarios for testing their product in a laboratory environment, without having the satellite itself available.

The new feature is released with Mainbuild MB25 and can be downloaded from IZT's FTP site. Customers interested in the ARB option should contact IZT before installing the new version, to ensure availability of installation support.

The simulator provides accurate, complex and reproducible simulation of uplink, payload and downlink effects on the signal such as delay and delay change over time, Doppler shift, interference by other signals, multiplexer filtering, phase noise, large and small scale fading, and thermal noise.

An instantaneous bandwidth of 100 MHz is supported for high bandwidth applications, with input and output frequencies between 40 MHz and 3 GHz. Customers can create realistic complex and reproducible scenarios to test flight and ground systems such as LEO, GEO, and MEO satellites, UAVs, modems, transmitters and receivers as well as telemetry tracking and ranging verification.

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