1 edition of Evaluation of radar performance degradation due to standoff jamming found in the catalog.
Evaluation of radar performance degradation due to standoff jamming
Yoon Kyu Chi
by Naval Postgraduate School, Available from the National Technical Information Service in Monterey, Calif, Springfield, Va
Written in English
|Contributions||Gill, Gurnam Singh, 1940-|
|The Physical Object|
|Pagination||64 p. ;|
|Number of Pages||64|
In order to evaluate the anti-jamming capacity of the radar net under information warfare conditions, this paper adopts the projection pursuit method to convert the main performance indexes which affect the radar net anti-jamming capacity into one dimension projection value, offers their evaluation and ranking of such indexes and achieves the weights of the these evaluation indexes. The resultant effect on the system performance can then be visualised through representative modelling and computation, all of which can now be carried out by a modern desktop computer. Dynamic Radar Range Equation A dynamic radar range equation of the following form, operating in a denial type of ECM environment is proposed as.
A dedicated synchronization link is a solution to avert the performance degradation due to oscillator frequency instability in distributed radar system. Hence, the use of a dedicated synchronization link to quantify and compensate oscillator frequency instability is investigated in this paper. the radar vision. Inverse gain jamming: Inverse gain is a angle deception jamming in which number of false target is created for every bearing in order to make radar confusion. The idea is to use a strong jamming replica when the radar beam points off target and a weak jamming signal when the radar beam is on target . Doing so radar.
The advent of pulse compression and its need for a lower EHT (with no degradation of radar performance), was a distinct advantage to the transmitter designers and production engineers, while also being a plus for the products operational reliability, . Sensors, an international, peer-reviewed Open Access journal. Dear Colleagues, A new generation of synthetic aperture radar (SAR) instruments mounted on-board to space and aerial vectors has been emerging over recent years, thus guaranteeing improved temporal sampling and spatial resolutions of remote-based investigations.
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An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker. Evaluation of radar performance degradation due to standoff jamming.
Item Preview Evaluation of radar performance degradation due to standoff jamming. by Chi, Yoon Kyu.;Gill, Gurnam : The performance degradation is evaluated of Airport Surveillance Radar (ASR-9) due to standoff jamming. ASR-9 data was taken from open literature on this civilian radar.
Jammer parameters which are representative of the actual system were postulated to keep the study unclassified. Using these parameters the effect of standoff jamming on detection of targets is : Yoon Kyu Chi. An illustration of an open book. Books. An illustration of two cells of a film strip.
Video An illustration of an audio speaker. Evaluation of radar performance degradation due to standoff jamming. Evaluation of radar performance degradation due to standoff jamming. by Chi, Yoon Kyu.;Gill, Gurnam Singh.
Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection Evaluation of radar performance degradation due to standoff jamming.
Approved for public release; distribution is unlimitedThis thesis evaluates the performance degradation of Airport Surveillance Radar (ASR-9) due to standoff jamming.
ASR-9 data was taken from open literature on this civilian radar. Jammer parameters which are representative of the actual system were postulated to keep the study : Yoon Kyu Chi. Radar jamming and deception is a form of electronic countermeasures that intentionally sends out radio frequency signals to interfere with the operation of radar by saturating its receiver with noise or false information.
Concepts that blanket the radar with signals so its display cannot be read are normally known as jamming, while systems that produce confusing or contradictory signals are. Due to this fact, simulation and analysis of radar performance in different scenarios could help decrease possible threats.
For this reason, in this paper the performance of radars in noise jamming environments is evaluated. To achieve this, a radar system, jammer attacks and anti-jamming algorithm are modelled and evaluated through simulations.
The introduction of vegetation elements between the target and the radar (i.e. creating a vegetation cover around the target) will reduce the signal received at the transponder, degrading the SNR and decreasing the probability of 3 shows the probability of detection when a single or a double vegetation barrier shields the target.
In both situations, two standard cases are. Evaluation of Radar Performance Degradation due to Standoff Jamming (Unclassified) Chi, Yoon Kyu 3Master's Thoesi September 74 iý .-V%TAll %0'0¾.A The views expressed in this thesis are those of the author and do not reflect the official policy or. This thesis evaluates the performance degradation of Airport Surveillance Radar(ASR-9) due to standoff jamming.
ASR-9 data was taken from open literature on this civilian radar. Effectiveness Evaluation for VHF Radar Jammer umar1, Tsegay Tesfay2 the growth is due to an inherent instability in the beam-wave system. includes self-protection, standoff, and escort jamming, and anti-radiation attacks.
EW is a. J-to-S Ratio (Bistatic) When the radar's transmit antenna is located remotely from the receiving antenna (Figure 6), the ratio of the power received (P r1 or J) from the jamming signal transmitted from the target to the power received (P r2 or S) from the radar skin return from the target equals J/S.
For jammer effectiveness J normally has to. In this paper, we will show that a distributed multiple-input multiple-output (MIMO) radar system can counter the deceptive jamming due to the spatial diversity: a deceptive pulse does not meet. Radar - Radar - Factors affecting radar performance: The performance of a radar system can be judged by the following: (1) the maximum range at which it can see a target of a specified size, (2) the accuracy of its measurement of target location in range and angle, (3) its ability to distinguish one target from another, (4) its ability to detect the desired target echo when masked by large.
One important issue in radar jamming is the effect of inaccuracies in the radar position, which leads to a number of false targets entering the reference window of the constant false alarm ratio (CFAR) detector to reduce greatly.
In this paper, two cooperative jamming methods specifically developed for a pulse compression radar with a CFAR detector are proposed with the aim of. Evaluation of Radar Performance Degradation Due to Standoff Jamming by Chi, Yoon kyu Lieutenant Colonel, Korea Air Force B.S., Korean Air Force Academy, Submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN SYSTEMS ENGINEERING (ELECTRONIC WARFARE) from the NAVAL POSTGRADUATE SCHOOL September is the radar noise figure and is dimensionless, or has the units of w/w.
L is a term included to account for all losses that must be considered when using the radar range equation. It accounts for losses that apply to the signal and not the noise.
L has the units of w/w. L accounts for a multitude of factors that degrade radar performance. Radar Evaluation Handbook (Artech House Radar Library) (Artech House Radar Library (Hardcover)) [David K. Barton, David K. Barton, Paul Hamilton, Charles E.
Cook] on *FREE* shipping on qualifying offers. Radar Evaluation Handbook (Artech House Radar Library) (Artech House Radar Library (Hardcover)). Abstract: Model of radar signal-to-noise ratio and signal-to-jamming ratio were given with full consideration of radar detection performance parameters and jamming parameters.
Then signal-to-jamming ratio gain was analyzed with different electronic counter-countermeasures. At the same time, radar detection probability models with different target RCS fluctuation were built. As the clutter rank increases, performance of the LRNMF degrades.
The performance degradation (approximately 4 dB loss) with increasing rank (from r=4 to 55) can be accounted for due to the fact that the threshold incurs an increase with increasing clutter rank. Furthermore, A 2, which is a measure of the output SNR, is also decreased with increasing clutter rank.
Air and missile defense (AMD) systems’ preliminary design requires a complex and interactive set of design, modeling, and simulation processes and toolboxes that capture functional, performance, and interface requirements [,] The Battlespace Engineering Assessment Tool (BEAT) was developed by the authors to conduct (1) sophisticated ship combat systems engineering preliminary design.Monday 16 April AM - AM Location: Ballroom Level, Osceola 3 Kenneth I.
Ranney, U.S. Army Research Lab. (USA) and Armin W. Doerry, Sandia National Labs. (USA).For mechanical jamming, you require devices that re-reflect or reflect the energy of radar back to it. Due to this method, it provides the impression of a false target. Corner reflectors, decoys, and chaff are three important parts of devices that help in mechanical jamming.