Cost–Efficient Phase Noise Measurement

Photonic-assisted wideband phase noise measurement of microwave signal sources

ELECT A photonic-assisted scheme for the phase noise measurement of microwave signal sources is proposed based on the optical delay-line method. In the proposed scheme, all the microwave signal processing is implemented in the optical domain, and the electrical devices that would limit the operation bandwidth and measurement sensitivity are avoided, leading to a large operation bandwidth and a ...

Measurement of Oscillator Phase and Amplitude Noise at W-band

This paper describes a technique used to measure oscillator noise sidebands at 94GHz. It is extendible to other frequencies in the millimetre-wave band. Oscillator noise sidebands are particularly significant for Continuous Wave (CW) radars, where the sidebands of the transmit/receive leakage can degrade the system noise figure. Measuring oscillator noise is also a particular challenge at highe...

High-Dynamic-Range Laser Amplitude and Phase Noise Measurement Techniques

We describe techniques for making sensitive and high-dynamic-range measurements of laser amplitude and envelope phase noise (timing jitter) in the frequency domain at the shot-noise limit. Examples of amplitude noise measurements on continuous-wave argon-ion and diode-pumped solid-state lasers used for pumping a femtosecond Ti : sapphire laser are presented. Amplitude and phase noise measuremen...

Construction Noise Database (Phase 3) Evaluation of Established Measurement Protocol

A digital signal-processing approach for phase noise measurement

A digital signal-processing method for phase noise measurement is presented. By properly over-sampling the input signal and adopting an optimized quadrature demodulation scheme, the method grants acceptable performance in analyzing sinusoidal carriers, the frequencies of which range from fractions of hertz up to hundreds of megahertz. Moreover, the method shows itself a valid alternative both t...