PRI Analysis and Deinterleaving Course

Course Description:

Pulse Repetition Intervals (PRIs) are the key to identifying the signals of many radar systems. The first step is to deinterleave signals from multiple radar systems. This class provides a brief introduction to PRI analysis and deinterleaving from the ELINT/EW point of view.

Course Outline:

PRI types and Definitions
Relationship to Unambiguous Range and Velocity
Optimum PRI and Range and Velocity “eclipsing”
Nominally constant PRI
Search time related to PRI
Stagger
Jitter
Dwell Switch-Pulse Doppler
Scheduled and Other PRIs
Multiple Pulse Groups
Doppler Effect
Frequency Domain Viewpoint and Coherence
Ambiguity resolution using Multiple PRIs
MTI and PRI requirements
MTD and PRI Requirements
Effects of Noise on PRI Measurements
Effects of amplitude variations on PRI Measurements
Doppler Shilft of PRI
Real Time Raster and other PRI measurement techniques
Mean PRI and Least Mean Squared Error PRI
PRI Analysisi using Histograms
The Delta-T Histogram
Deinterleaving Devices
Deinterleaviong using the Delta-T Histogram
Complex Delta-T Histogram
Effects of Jitter
Improved Complex Delta-T Histogram
Example of Automated Processing to estimate PRIs
The Pulse Train Spectrum
Pulse Sorting Example
Refinements to PRI Sorting
Precision PDWs in Modern ELINT Analysis

Speaker and Presenter Information

Dr. Richard Wiley Dr. Wiley is the Vice President and Chief Scientist of RAS, Inc., has many years of experience in ELINT/EW, specializing in signal analysis and receivers. He has authored four books and many technical papers. Dr. Wiley developed many pioneering ELINT techniques including the rapid scan superhet for LPI signals, deinterleaving techniques, optimum scan strategies, advanced radar techniques, improved ESM receiver sensitivity, etc. He is a Fellow of the IEEE.

Relevant Government Agencies

Air Force, Army, Navy & Marine Corps, Intelligence Agencies, DOD & Military, Office of the President (includes OMB), Dept of Energy, Dept of Homeland Security, Dept of Justice, Dept of State, Dept of Veterans Affairs, NASA, State Government, CIA, Coast Guard, Census Bureau