Arbitrary Resources, S.L.

Real-World Impairments

Margin testing requires more than ideal signals. Impairments, noise and interfering signals must be added in order to obtain the required results. ArbIQ, with its built-in impairment addition tool, which includes carrier feed-through and quadrature error and imbalance, and its multi-carrier capability makes it possible to solve this need with just one box. Non-linear impairments such as amplifier distortion (AM/AM, AM/PM distortion) are also supported. Non-linear support also helps implementing and experimenting pre-distortion correction for high-power amplifiers. Multipath emulation is as easy as filling the corresponding form with the description of the different paths by entering the delay/amplitude/ phase for each delay. Testing equalizers and rake receivers has never been so easy.

Signal Impairments

Linear Distortion

Quadrature error, quadrature imbalance, and carrier feed-through can be applied to each carrier independently and simultaneously.

Non-Linear Distortion

AM/AM and AM/PM distortions are defined by applying a polynomial. This featre can be used for both signal distortion or pre-distortion.

Multi-Path

Multipath is easily set by defining all the coefficients for each path (delay, attenuation, and phase) so the path impulse response is fully established.

BW Limited Gaussian Noise

Banwidth-limited noise can be added to any signal or signal combination. Noise parameters include the central frequency, its BW, level, and crest factor.

Power Ramping

Amplitude changes can be emulated using the power ramping tool. Flexibility allows generating burst and defining the transient shape and duration.