Title :
Helicopter classification using time-frequency analysis
Author :
Yoon, Sang-Ho ; Kim, Byungwook ; Kim, Young-Soo
Author_Institution :
Div. of Electr. & Comput. Eng., Pohang Inst. of Sci. & Technol., South Korea
fDate :
10/26/2000 12:00:00 AM
Abstract :
Helicopters are important targets in many ground based radar systems, and it is highly desirable to have the capability to classify the detected helicopters. It is shown that time-frequency analysis can be used to determine the number of helicopter blades unambiguously. The rotational frequency of the main rotor can be obtained once the number of blades is determined, and these values can be used to identify the types of the helicopter in question
Keywords :
helicopters; military radar; pattern classification; radar target recognition; time-frequency analysis; ground based radar systems; helicopter blades number determination; helicopter classification; helicopter type identification; main rotor; rotational frequency; time-frequency analysis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001306
