Patent ID: 8559885

Claim:
A system for measurement of parameters of radio-frequency transmission devices comprising: (a) a radio-frequency transmission emulator comprising a signal generator, a first filter and a second filter; (b) an input power attenuator, wherein said input power attenuator is operatively connected to said radio-frequency transmission emulator; (c) a device under test, wherein said device under test is operatively connected to said input power attenuator; (d) an output power attenuator, wherein said output power attenuator is operatively connected to said device under test and to said radio-frequency transmission emulator, and (e) a processor, said processor being configured to perform the steps of: (i) generating a Gaussian white noise transmission signal in the signal generator; (ii) passing said Gaussian white noise transmission signal through the first filter; (iii) transmitting said Gaussian white noise transmission signal to the device under test; (iv) receiving said Gaussian white noise transmission signal after passing through said device under test; (v) passing said received Gaussian white noise transmission signal after it had passed through said device under test through the second filter; (vi) subtracting said passed Gaussian white noise transmission signal through the first filter from said received Gaussian white noise transmission signal after passing through said device under test through the second filter; (vii) feed-backing said subtracted signal to said first filter; (viii) communicating between a main controller and said first filter and said second filter; (ix) monitoring the signals coming out of said first filter and said second filter; and (x) changing said first filter parameters.