Extending CW radar unambiguous detection range using a Modified Frank Code
Autor: | Phillip E. Pace, Dongjin Yeom |
---|---|
Rok vydání: | 2018 |
Předmět: |
Physics
Coprime integers Autocorrelation 020206 networking & telecommunications 02 engineering and technology Object detection law.invention Modulation law 0202 electrical engineering electronic engineering information engineering Code (cryptography) Polyphase system Radar Algorithm Phase modulation |
Zdroj: | 2018 IEEE Radar Conference (RadarConf18). |
Popis: | A number theoretic transform of the Frank polyphase modulation is introduced in order to significantly extend the unambiguous detection range of CW polyphase modulation radar beyond a single code period using N coprime moduli and their residues. The Modified Frank Code (MFC) allows the coverage of a large unambiguous range while minimizing the correlation lengths necessary to achieve the required compression gain for target detection. We present 3 different formulations of the MFC each having their unique characteristics. We show that the third formulation (MFC-III), retains a perfect periodic autocorrelation property with zero sidelobes similar to the original Frank modulation. |
Databáze: | OpenAIRE |
Externí odkaz: |