MENU

Signal/Data Processing Deception

Written By Massimo Annulli
568Signal/Data Processing Deception

False Range target (FRT):

A jammer based on a DRFM can generate false targets at distances much or less great than the distance of the true target; the system analyzes the trend over time of the radar PRI and predicts when the next pulse will be transmitted.
In any case, the objective is of generating false targets with a power at least equal but preferably greater than the skin echo of the true target at the output of the Signal Processing.

False Doppler Target (FDT)

The intent is to create one or more false target whose Doppler frequency is different from that of the true target to stress the data process of the victim system.
This technique consists of a coherent Repeater that produces signals spaced in frequency with respect to the true Doppler of the target:
Multiple frequencies can be generated with pulsed FM or AM.
Modulation lines can be transmitted in regular or random way or a single line can be emphasized and made to move in frequency in the Doppler band of the target radar.

OOK at processing rate

The intent is to cause DRR (Data Rate Reduction) in the victim radar by putting an OOK (On-off keying) waveform to a rate correlated to the time constant of the AGC or to the refresh time of the acquisition logics or other response times of the Data Processing.
This technique consists in on-off modulating the envelope of the transmitted signal (jamming or deception) the modulation can be square wave or triangular wave.
DRR is a term that refers to a broad category of techniques that aim to reduce or to degrade the performance of a radar or missile.

Signal Enhancement:

The goal is to create a false echo larger than the skin echo of the platform to be protected.
The implementation of this technique involves a Repeater that receives, amplifies and transmits the victim radar signal without imparting any form of modulation; it is used jointly to other techniques (cross pol) or to increase the effectiveness of some tactics based on decoys.

From the same Author
exagon-bg

Amplitude Modulation in RECM techniques

READ MORE

exagon-bg

Signal/Data Processing Deception

READ MORE

exagon-bg

Range Gate Pull-Off (RangeDeception)

READ MORE

exagon-bg

Offensive Electronic Attack

READ MORE

exagon-bg

Spot Noise

READ MORE

exagon-bg

Stand-Off Jammer Task

READ MORE

exagon-bg

Cross-eye

READ MORE

exagon-bg

Radar Electronic CounterMeasures in Stand-in Jammer Task

READ MORE

exagon-bg

Radar Electronic Countermeasures in Stand-Off Task (Stand-Off-Jammer)

READ MORE

exagon-bg

Electronic Protection (EP)

READ MORE

exagon-bg

Velocity Gate Pull-Off

READ MORE

exagon-bg

Stand-In Jammer Task

READ MORE

exagon-bg

Cover Pulse (Radar)

READ MORE

exagon-bg

Defensive Electronic Attack

READ MORE

exagon-bg

Radar Electronic Countermeasures Techniques

READ MORE

exagon-bg

Self-Protection task (maritime)

READ MORE

exagon-bg

Repeater Jamming

READ MORE

exagon-bg

Radar Electronic CounterMeasures in Escort Jammer Task

READ MORE

exagon-bg

Space EW

READ MORE

exagon-bg

Chaffs

READ MORE

exagon-bg

Swept Noise (Radar)

READ MORE

exagon-bg

EWC4

READ MORE

exagon-bg

Self Protection Suite

READ MORE

exagon-bg

Inverse Gain

READ MORE

exagon-bg

Noise Jamming (Radar)

READ MORE

exagon-bg

EW Command & Control EWC2

READ MORE

exagon-bg

Self-Protection Task for Surface Ships

READ MORE

exagon-bg

Communication Electronic Attack

READ MORE

exagon-bg

Self-Protection for submarines

READ MORE

exagon-bg

Angle Deception

READ MORE

exagon-bg

Deception Jamming (Deception Techniques in Radar ECM)

READ MORE

exagon-bg

Swept Amplitude Modulation (SAM)

READ MORE

exagon-bg

Threat Reaction

READ MORE

exagon-bg

Self-Protection Task (airborne)

READ MORE

exagon-bg

Counter UAS/UAV

READ MORE

exagon-bg

Anti-Monopulse techniques - Cross-polarization

READ MORE

exagon-bg

Spoofing in Radar ECM

READ MORE

exagon-bg

Radar Electronic Countermeasures in Self Protection task

READ MORE

exagon-bg

Escort Jammer Task

READ MORE

exagon-bg

Barrage Noise

READ MORE

exagon-bg

Self-Protection Task in Maritime Aviation Environment

READ MORE

exagon-bg

Radar Electronic Attack

READ MORE