The Measurement System of Pulse Modulated Carrier Frequency Stability and Timing Jitter
Abstract
This paper describes the definition of pulse modulated carrier frequency stability and timing jitter as well as the configuration and synchronous acquisition measurement method of its measurement system. Frequency stability of pulse modulated carrier is measured with discrimination technique. The pulse modulated carrier under test is mixed with a reference frequency synthesizer. A delay line is used to convert the frequency fluctuation mixed IF signal to the voltage fluctuation. The system has the capability to make the phase noise measurement of two port devices on pulsed carrier using phase bridge. The noise voltage mentioned above is applied to the data acquisition and processing unit by pc to realize stability measurement. The data acquisition is in the form of pulse synchronization so that the measurement system accuracy is increased. The pulse width is more than 0.3 microseconds. The phase fluctuation variance o is less than 0.017, The time interval measuring system with high resolution is used to make interpulse timing and pulse width jitters automatic measurement. The pulse width is less than 0.2 ns. The resolutiun is 0.1 ns. The system is successfully applied to radar measurement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1991
- Accession Number
- ADA519501
Entities
People
- Cheng-fu Li