The ambiguity function of PN-chirp pulse signal
- Resource Type
- Conference
- Authors
- Jing Liu; Huichang Zhao; Yanping Zhu
- Source
- International Conference on Information Science and Technology Information Science and Technology (ICIST), 2011 International Conference on. :543-547 Mar, 2011
- Subject
- Computing and Processing
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Robotics and Control Systems
Correlation
Doppler effect
Doppler radar
Signal resolution
Phase modulation
Density functional theory
- Language
- ISSN
- 2164-4357
The power spectral density function and the ambiguity function(AF) properties of Combination of Chirp Modulation and Pseudonoise Phase Modulation (PN-chirp) pulse signal is analyzed. According to the AF definition of a given finite energy signal, the AF of PN-chirp signal is deduced, and the autocorrelation function of the signal is also obtained. The AF of PN-chirp signal and Pseudonoise Phase Modulation signal are contrasted to show the difference between the two pulse signals. Simulation results show that the AF of PN-chirp signal can be obtained by shearing an angle of the AF of Pseudonoise Phase Modulation signal; Compared with Pseudonoise Phase Modulation signal, PN-chirp signal has a better range accuracy and range resolution. The Doppler sensitivity is also significantly improved.