Ew against monopulse principles and techniques pdf

#EW AGAINST MONOPULSE PRINCIPLES AND TECHNIQUES PDF PDF#
#EW AGAINST MONOPULSE PRINCIPLES AND TECHNIQUES PDF FULL#

Additionally, specifically designed, anti-jam antennas have become available. Similar to jamming techniques, these countermeasures allow for varying levels of effectiveness. Many jamming antennas use these types of techniques.ДЄt present, there are several countermeasures against jamming. High-performance embedded computing, improvements in SWaP, and distributing capability over many different aircraft is helping. For example, by changing the delay in transmission of pulses, the jammer can alter the range the radar detects and creating false targets. Enabling technologies for airborne electronic warfare. The main drawback of this technique is that the jammer spreads itвЂ™s power across multiple frequencies, making it comparatively less powerful at a single frequency.Дigital frequency radio memory, or DRFM,В is a repeater technique that confuses a radar by altering and re-transmitting received radar energy. Barrage jamming is the jamming of multiple frequencies at once by a single jammer. This вЂњsweepingвЂќ motion jams multiple frequencies in quick succession, although not all at the same time.

#EW AGAINST MONOPULSE PRINCIPLES AND TECHNIQUES PDF FULL#

Sweep jammingВ is the process of shifting a jammerвЂ™s full power from one frequency to another. Spot jamming is a form of noise jamming, where aВ jammer focuses all of its power on a single frequency, rendering the technique ineffective against a frequency-agile radar. Spot jamming, sweep jamming, and barrage jamming are the three most common types of noise jamming, whereas DRFM jamming is the most common type of repeater jamming. The two main jamming techniques are noise techniques and repeater techniques. In electronic warfare (EW) these interference are meant to disrupt control of a battle.В For example, jammers radiate interfering signals toward an opponentвЂ™s radar, blocking the receiver with highly concentrated energy signals.

230000035945 sensitivity Effects 0.While вЂњinterferenceвЂќ generally describes unintentional forms of disruption during wireless communications, вЂњjammingвЂќ describes the deliberate interference with or blocking of such communications.ДЄs the name suggests, jamming antennas, ( aka jammers) are specifically used to interfere with radio noise or signals.

230000014509 gene expression Effects 0.000 claims description 7.

239000011159 matrix material Substances 0.000 claims description 16.

238000005259 measurement Methods 0.000 claims abstract description 17.238000000034 method Methods 0.000 claims abstract description 46.230000003044 adaptive Effects 0.000 title claims description 36.Assignors: MARTIN MARIETTA CORPORATION Application granted granted Critical Publication of US6867726B1 publication Critical patent/US6867726B1/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links Assignors: GENERAL ELECTRIC COMPANY Assigned to LOCKHEED MARTIN CORPORATION reassignment LOCKHEED MARTIN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MURROW, DAVID J., YU, KAI-BOR Assigned to MARTIN MARIETTA CORPORATION reassignment MARTIN MARIETTA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Lockheed Martin Corp filed Critical Lockheed Martin Corp Priority to US07/807,548 priority Critical patent/US6867726B1/en Assigned to GENERAL ELECTRIC COMPANY reassignment GENERAL ELECTRIC COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Original Assignee Lockheed Martin Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires Application number US07/807,548 Inventor Kai-Bor Yu David Jay Murrow Current Assignee (The listed assignees may be inaccurate.

#EW AGAINST MONOPULSE PRINCIPLES AND TECHNIQUES PDF PDF#

Google Patents Combining sidelobe canceller and mainlobe canceller for adaptive monopulse radar processingДownload PDF Info Publication number US6867726B1 US6867726B1 US07/807,548 US80754891A US6867726B1 US 6867726 B1 US6867726 B1 US 6867726B1 US 80754891 A US80754891 A US 80754891A US 6867726 B1 US6867726 B1 US 6867726B1 Authority US United States Prior art keywords mainlobe jammer canceller monopulse sidelobe Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Google Patents US6867726B1 - Combining sidelobe canceller and mainlobe canceller for adaptive monopulse radar processing US6867726B1 - Combining sidelobe canceller and mainlobe canceller for adaptive monopulse radar processing

Ew against monopulse principles and techniques pdf