From Robust Engineering
ITT industries, avionics division - USA
To search for potential radar threats, a typical EW (electronic warfare) system employs one or more swept superheat (superheterodyne) receivers to perform signal detection and identification. Threats can be classified into two categories:
Low probability of intercept radar (LPI) threats
Pulse and pulse Doppler (PR) random threats
There are many different types of radar signals that are intended threats for a swept superheat receiver ranging from duty cycle pulsed to continuous wave (CW) waveform. The primary purpose of this project was to perform a set of experiments using Taguchi Methods to optimize the performance and robustness of a generic swept superheat receiver in the detection and identification of radar threats in a dense and time-varying EW environment.
A dramatic improvement of time to intercept (TTI) performance was seen by using optimum levels of control factors derived from a series of Taguchi experiments. The TTI criterion is based on the root-mean-squared (RMS) elapsed time of the swept superheat receiver before intercepting randomly selected radar threats. However, it does not provide clear indication of the receiver's dynamic performance in intercepting all radar threats as they appear randomly in the EW environment.
This project was planned using the probability of miss (Pm) to detect and identify radar threats versus elapsed time (T) as the performance characteristics, which is more effective in evaluating the receiver in a dynamic EW environment.
Instead of evaluating the system by a static approach, a dynamic approach...
Products & Services
Weather radar systems, also called weather surveillance radar and Doppler weather radar, is a type of radar used to locate precipitation, determine precipitation type, and calculate its motion.
Topics of Interest
ITT INDUSTRIES - AEROSPACE/COMMUNICATIONS DIVISION AND PHADKE ASSOCIATES, INC. - USA EXECUTIVE SUMMARY BACKGROUND The mixed excitation linear predictive (MELP) algorithm was adapted in 1996 as the...
2.1 INTRODUCTION One of the most difficult problems in inviting researchers to work on electronic warfare (EW) receivers is that the subject is not well understood, especially by academic scholars...
AC alternating current ACF autocorrelation function A/D analogue-to-digital (converter) AI artificial intelligence ARM anti-radiation missile ATC air traffic control CAT clear-air...
Arthur G. Self 4.1 Background Probability of intercept (POI) is a key performance feature of EW surveillance and reconnaissance systems; it relates to the probability of time coincidence of two or...
Overview A hypothetical interception situation can serve to illustrate a probability of intercept calculation without using the window function approach. Assume that there is a radar whose radio...