Improved Angular Tracking Accuracy in Phased Array Radar
Journal Title: روش های هوشمند در صنعت برق - Year 2019, Vol 9, Issue 33
Abstract
Monopulse is a technique which is used to detect radiation direction of waves. Radiation can be originated from active sources such as radar antennas, disturbances, etc., or passive sources, such as the reflector plates of an aircraft. Nowadays, monopulse technique has been used in many modern radar systems. In radar tracking accuracy, the criterion for evaluating the angulation function is the differential gradient. It needs to have accurate information about antenna dimensions and wavelengths. In this paper, the difference gradient value is normalized and can be completed with knowing the radiation pattern of the antenna without knowing wavelength and gate dimensions. Then, by choosing a four-horns feed, the feed is optimized based on the squint angle. The results indicate that in the whole functional range, the optimum squint angle has the least angular error. Simulations provide us with confidence in the superior performance of the radar tracker with an optimal squint angle for all target angles within the range of the pattern of monopulse radar.
Authors and Affiliations
Ehsan Asgari, Mojdeh Mahdavi, Ruhollah Hafezifard
Keywords
Related Articles
- EP ID EP567742
- DOI -
- Views 109
- Downloads 0
A Low-Voltage and Low-Power Programmable "G" _"m" "-C" Filter for Wireless Applications
In this paper, a low voltage and low power (LV/LP) Operational Transconductance Amplifier (OTA) using FGMOS (Floating-Gate MOS) transistor is proposed. The relative tuning range of 50 is achieved in this OTA while only c...
Location-aware News Recommendation System with Using Fuzzy Logic
with release of a huge amount of news on the Internet and the trend of users to Web-based news services.it is necessary to have a recommendation system. To grab attentions to news, news services use a number of criteria...
Throughput Improvement in Multi radio Multi channel Wireless Cognitive Radio Mesh Networks
The classic spectrum management methods cannot efficiently supply the future multicast traffic demands. Recently, the cognitive radio technology has emerged as a promising solution to enhance the spectrum utilization. Ho...
Venous Thromboembolism Modeling by Fuzzy Method
Venous Thromboembolism (VTE) is a complication of surgery that may result in sudden death. Unfortunately there is not a reliable model for it up to now where with accurate modeling can be prevented serious these complica...
A Novel Detection Scheme for Dual polarized Multiple Input Multiple Output Digital Video Broadcasting Terrestrial
In order to quality service improvement, digital video broadcasting terrestrial should increase both channel capacity and also data rate. The system should be stable against fading. To achieve this aim, using multiple in...