Accession Number : ADA318778

Title :   Near-Field Radar Signature Modeling for EW/End-Game Simulations,

Corporate Author : NAVAL AIR WARFARE CENTER WEAPONS DIV POINT MUGU CA

Personal Author(s) : Yu, C. L. ; Kipp, R. ; Andersh, D. J. ; Lee, S. W.

PDF Url : ADA318778

Report Date : 1996

Pagination or Media Count : 10

Abstract : The effectiveness of radar guided weapons can be compromised by a number of factors, such as target glint, engine modulation, clutter and electronic counter measures (ECM). In fact, many missile intercept failures often were attributed to these factors. Thus, effective weapon systems design must carefully consider these effects in order to avoid serious degradation of the weapon performance. By employing modeling and simulation, effective design can be achieved with relative ease and significant cost savings. For missile fuzing/ECM applications, the transmitting and receiving antennas on the missile are generally located in the near field zone of the scattered field from the target encountered. In consequence, the radar return computation is complicated by the partial target illumination, nonuniform antenna patterns, target material coatings, and engine inlet returns. Existing near field radar cross section (RCS) computation algorithms are typically based on first-order high frequency methods that do not account for multiple bounce and complex shadow effects. In particular, those algorithms cannot be used to calculate scattering from a cavity, such as an engine inlet or a sensor box. The cavity scattering, material coatings and engine modulation are, however, known to be crucial contributors in fuzing and ECM end-game missile/target encounter simulations. A successful missile/target engagement analysis must thus be conducted with accurate near-field target signature information that includes effects attributable to multi-bounce, material coatings, antenna patterns, etc.. This paper discusses techniques and methodologies for solving near field modeling and simulation problems in missile/target end-game scenarios.

Descriptors :   *RADAR COUNTERMEASURES, *WEAPON SYSTEM EFFECTIVENESS, *RADAR SIGNATURES, ALGORITHMS, COMPUTERIZED SIMULATION, SCENARIOS, TARGET SIGNATURES, PERFORMANCE(ENGINEERING), ELECTRONIC COUNTER COUNTERMEASURES, RADAR CROSS SECTIONS, RADAR HOMING, ANTENNA RADIATION PATTERNS, GUIDED MISSILE TARGETS, GUIDED WEAPONS, NEAR FIELD, GAME THEORY, GLINT, GUIDED MISSILE FUZES.

Subject Categories : Active & Passive Radar Detection & Equipment
      Fire Control and Bombing Systems
      Radar Countermeasures

Distribution Statement : APPROVED FOR PUBLIC RELEASE