This extension allows the technique to function on any set of binary data that has sufficient edges to provide information on the phase noise under evaluation.University of Washington.Ecker, Allan C.University of Washington.A. C. Ecker, "A digital method for phase noise measurement," Ph.D. ...
A phase noise measurement module (PNMM), system and method for measuring phase noise improve accuracy of phase noise measurements of a signal under test (SUT) using a spectrum analyzer. The PNMM includes an RF to hF frequency converter and a selectable frequency divider. The system includes ...
Using digital phase-noise measurement techniques and an even-harmonic mixer, we achieve a phase-noise measurement system in waveguide (WR1.5). At 670 GHz an upper bound of this system's noise floor is found to be −20, −40, and −60 dBc/Hz at 1, 100, and 10000 Hz offsets, ...
One technique using a phase detector to demodulate the phase noise from the carrier signal will be covered in detail along with a hardware implementation based on this method. 3 Basic Phase Noise Measurement Concepts V (t) = VO [ 1+ e(t) ] sin [2π vO t + ø (t)] VO II A(t...
spectrum analyzer, such as SNA-7, can carry out direct SSB phase noise measurements to within a few Hz of the carrier frequency at radio frequencies.[2] In this case, there is no need to invest in expensive phase noise measurement equipment based on the zero-crossing method (phase detector...
Aiming at the shortcomings of traditional broadcast transmitter noise test methods, such as low efficiency, inconvenient data storage, and high requirements for testers, a dynamic online test method for transmitter noise is proposed. The principle of system composition and test method is given. The ...
10. The method of estimating phase noise spectral density in a periodic signal as recited in claim 8 wherein the interpolating step further comprises the step of generating a higher order interpolator using multiple digital data samples above and below the reference crossing. 11. The method of ...
A digital signal processing algorithm, the moving reference line crossing count method (MRLCCM), was developed to implement the structural strain measurement by a passive demodulated fiber optic Michelson interferometric sensor. The fiber optic Michelson sensor, which is constructed of a 3 × 3 fiber...
Software-defined radios (SDRs) are radio frequency transceivers designed to facilitate digital signal processing through the use of vast libraries of open-source software. Here, we assemble a simple data acquisition system whose architecture, based on SD
T. Decker and R. Temple, "Choosing a phase noise measurement tech- nique," in RF and Microwave Measurement Symp. and Exhibition, 1999.T. Decker and R. Temple, "Choosing a phase noise measurement technique," in Proc. RF Microw. Meas. Symp. Exhib., 1999, pp. 1-64....