Introduction to Electronic Defense Systems by Filippo Neri

By Filippo Neri

This revised variation of the vintage, creation to digital safety platforms, deals a radical, up to date survey of refined weapon and digital war (EW) platforms, and covers the entire most up-to-date technological advances during this rapidly-changing area.

Brand new fabric contains deep rationalization of up to date radar strategies (Digital Receivers, SAR/SSAR/ISAR/DBS, LPI radar, etc), the most recent advances in IR innovations (Rosette test seeker research, DIRCM, etc.) and the EW innovations (DRFM, electronic Receiver, New Passive position platforms, DRFM, sturdy country expertise, excessive solution Radar Jamming, etc.) and an creation to details Operations and data Warfare.

You get a pretty good realizing of the way subtle EW weapon platforms paintings, and the way those guns could be intercepted and electronically jammed. From seek and monitoring radar, IR platforms, and communique systems... to digital intercept platforms, countermeasures, and counter-countermeasures, the booklet explores a huge spectrum of safety gear. It explains how those structures function, the benefits and disadvantages of every process, and the theories on which those platforms are dependent. This authoritative source comprises 320 illustrations and 360 equations that help key subject matters during the e-book.

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Example text

Therefore, in the radar receiver output there will be not only the signal S, but also the noise N: This is one of the major problems confronting radar. In fact, whenever it has to be decided whether a very distant target, which would generate a very weak signal easily mistaken for noise, is present or absent, there is a risk of reaching the conclusion that a small noise is a target (a false alarm), or that a weak signal is just noise (a miss). In practice, the presence of a target will easily be detected only if its echo S is strong compared to the noise N: In what follows, the signal-to-noise ratio will be denoted by either SNR or SIN.

It is a cathode-ray tube (CRT) display in which the electron beam is deflected in a direction corresponding to the angular position of the antenna. Deflection of the beam is proportional to target range; that is, the time taken by the cathode ray to shift from the center to the point representing the target is the same as the time taken by the radar pulse for its round trip to and from the target. The cathode-ray intensity is directly proportional to the receiver output signal strength. In the absence of echoes it will be minimal, being due exclusively to the amplified receiver thermal noise.

Communications Intelligence (COMINT) These systems are similar to the preceding ones, but their task is the interception and analysis of telecommunications emissions and the identification of relevant communications networks. Electronic Support Measures (ESM) The main objective of equipment of this type of class is tactical interception. The simplest systems are those whose main function is to detect the presence of already known emitters by comparison of the intercepted signals with stored data.

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