By Philip E. Pace
Low likelihood of intercept (LPI) radar is more and more severe to covert surveillance, goal monitoring and stealth operations - as is the potential to notice it. Now, the world's so much authoritative e-book on LPI emitter layout and counter-LPI concepts explores the most recent advances within the box in a brand new variation whole with ready-to-use MATLAB software program simulations for each LPI modulation within the publication. Supported through 360 task-clarifying illustrations, the booklet bargains radar engineers professional suggestions at the layout of LPI emitter and intercept receivers and the improvement of electronic sign processing strategies for detecting and classifying LPI modulations. This titleincludes a CD-ROM! It includes worthy MATLAB courses that aid pros layout a variety of LPI emitter architectures and waveform modulations to aid them with their detection and class paintings.
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Extra info for Detecting and Classifying Low Probability of Intercept Radar
11) for u ≥ B and is a modified sinc pattern where the one parameter B controls all of the characteristics (side lobe level, beamwidth, directivity and so forth). 2 as a function of the array length d and the wavelength λ. Tables of circular aperture distributions and the design process for the Taylor scheme are given in . 3 Antenna Scan Patterns for Search Processing LPI radar systems are often identified by the type of scanning the emitter uses. Scanning is the systematic movement of a radar’s antenna beam in a particular pattern to search or track a target.
The Pilot is a well-published example of an FMCW tactical navigation LPI radar [29—33]. It can easily be added on to an existing navigation radar, retaining the original X-band antenna, transceiver, and display system. In a tactical situation, the Pilot can be switched out and the pulsed radar can be switched in when higher signal-to-noise ratios are required. It also has standard video output to simplify integration with standard pulsed navigation radar. 14: LPI radar maximum detection range as a function of the sensitivity ratio δ.
29) where Rk is the range or path length in kilometers and α is the one-way extinction coeﬃcient or power attenuation coeﬃcient in nepers per km (Np/km). 5 in more useful engineering units (dB/km). 23. 30) 4πRT2 4πRT2 where RT is the range between the LPI radar and the target. 31) The LPI radar captures the reflected energy with its receive antenna. 33) 4π and LRT is the loss between the radar’s transmitter and antenna, and LRR is the loss between the radar’s antenna and receiver. 34) It is often necessary to know the minimum input signal power at which a receiver can detect and process an incoming target signal.