Accession Number : ADA086787


Title :   A New Class of Pulse Compression Codes and Techniques.


Descriptive Note : Interim rept.,


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Lewis,B L ; Kretschmer,F F


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a086787.pdf


Report Date : 26 Mar 1980


Pagination or Media Count : 27


Abstract : A new class of symmetrical polyphase codes is introduced that promises to be very useful in pulse expander-compressor circuits for radar systems. These codes are very compatible with digital signal processing techniques. The code symmetry permits digital pulse expander-compressors to be implemented with less hardware than required with any previously known code. Another significant advantage of the new codes is that precompression bandwidth limiting such as normally would be found in any well-designed radar actually improves the mainlobe to sidelobe ratios obtainable with the new codes while it degrades that obtainable with the previously known Frank code.


Descriptors :   *SIDELOBES , *RADAR PULSES , *PULSE COMPRESSION , SIGNAL PROCESSING , DIGITAL SYSTEMS , SIGNAL TO NOISE RATIO , SYMMETRY , BANDWIDTH , DOPPLER EFFECT


Subject Categories : Cybernetics
      Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE