Title :
A PN-radar correlator with IF-input ports
Author :
Helmbrecht, F.B. ; Olbrich, M.O. ; Zitzmann, D. ; Biebl, E.M.
Author_Institution :
Fachgebiet Hochstfrequenztechnik, Technische Univ. Miinchen, Munchen, Germany
Abstract :
This paper presents an IF-correlator with IF-input ports avoiding DC-offsets in the correlation signal path, as well as the need for a detector for the received signal. Often in PN-radar systems, the received signal is detected and then correlated with the reference signal at baseband. Due to DC passage through baseband correlators, only symmetric codes in DC-free paths provide a high dynamic range. The concept presented in this paper overcomes these shortcomings by correlating the signals at an intermediate frequency.
Keywords :
code division multiple access; correlators; encoding; radar signal processing; signal detection; spread spectrum radar; DC passage; IF-correlator; IF-input ports; PN-radar correlator; baseband correlators; correlation signal path; signal detection; symmetric codes; Autocorrelation; Baseband; Binary phase shift keying; Correlators; Detectors; Dynamic range; Frequency; Multiaccess communication; Radar; Signal detection;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610359
