Quantifying multi-channel receiver calibration

A novel test has been developed to measure the maximum achievable array calibration performance of a multi-channel receiving system. The test will quantitatively determine the quality of a particular calibration solution and rank the relative performance of several candidate calibration solutions. It also provides a measure of the dynamic range of the multichannel receiver as distinct from traditional tests which reveal the dynamic range of individual channels and not the multi-channel system as a whole. We demonstrate the utility of the test by analysing an eight channel HF receiver system.