What is stagger in radar?

Stagger is used to describe a variable “Pulse Recurrence Frequency” (PRF) which is the number of times the interceptor fires a transmission in a second. Jitter allows a built in system of variability to affect the PRF such as to render its predictability difficult for a target ECM suite to decode.

Why is pulse staggering needed?

Staggered PRF The change of repetition frequency allows the radar, on a pulse-to-pulse basis, to differentiate between returns from its own transmissions and returns from other radar systems with the same PRF and a similar radio frequency.

What is stagger PRI?

By staggering the PRI in uniform time increments, electronic countermeasures (ECM) techniques allow aircraft to potentially avoid being tracked by search radar by returning a radar signature indicating false aircraft speed and direction.

What is staggered PRF?

Staggered PRF is an emission process where time delays between successive pulse transmissions change in an alternating way.

What is PRF jitter?

PRF jitter may be considered a random stagger. It is also an EP technique to counter synchronous jammers. PRF jitter has no repeating pattern of PRI values. RADAR RECEIVER CHARACTERISTICS. Pulse repetition frequency, pulse recurrence time, and pulse width are determined by the transmitter.

What is PRF and PRT?

PRF stands for Pulse Repetition Frequency. It is equal to number of pulses which are transmitted per second. PRT stands for Pulse Repetition Time. The time between beginning of one pulse and start of next pulse is known as Pulse Repetition Time.

What is dwell and switch?

Abstract. Dwell-time switching is a logic for orchestrating the switching between controllers in a family of candidate controllers in order to control a process with a highly uncertain model.

What is pulse repetition interval?

The pulse repetition interval (PRI) is the time interval between pulses. If the next pulse was transmitted before this interval the radar receiver would not be able to decide whether a return was from a long range target illuminated by the preceding pulse or a short range target from the subsequent pulse.

What is staggered PRF in Doppler radar?

A Staggered PRF Coherent Integration for Resolving Range-Doppler Ambiguity in Pulse-Doppler Radar. Two staggered PRFs are used to extend blind Doppler frequency. The phase/time compensation algorithm is applied for coherent integration of non-coherent pulse-trains.

What is radar eclipsing?

In a radar background, the term “eclipsing” describes a partial loss of data at the reception side. It implies an increase of pulse compression sidelobes, and thus a degradation of detection performance.

What is PRI and PRF?

PRI is the time interval between two adjacent pulses. PRF is the rate that pulses repeat per second and is equal to the inverse of PRI.