An Estimation Method for number of carrier frequency
| Autor: | Peng Xiong Peng Xiong, Wenli Jiang, Liu-Li Wu Liu-Li Wu, Zheng Liu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Burg algorithm Frequency-shift keying Acoustics AR model Keying hybrid modulation signal Minimum-shift keying Signal transition Modulation lcsh:TA1-2040 Baseband Electronic engineering lcsh:Engineering (General). Civil engineering (General) Quadrature amplitude modulation Amplitude and phase-shift keying |
| Zdroj: | MATEC Web of Conferences, Vol 22, p 02027 (2015) |
| Popis: | This paper proposes a method that utilizes AR model power spectrum estimation based on Burg algorithm to estimate the number of carrier frequency in single pulse. In the modern electronic and information warfare, the pulse signal form of radar is complex and changeable, among which single pulse with multi-carrier frequencies is the most typical one, such as the frequency shift keying (FSK) signal, the frequency shift keying with linear frequency (FSK-LFM) hybrid modulation signal and the frequency shift keying with bi-phase shift keying (FSK-BPSK) hybrid modulation signal. In view of this kind of single pulse which has multi-carrier fre- quencies, this paper adopts a method which transforms the complex signal into AR model, then takes power spectrum based on Burg algorithm to show the effect. Experimental results show that the estimation method still can determine the number of carrier frequencies accurately even when the signal noise ratio (SNR) is very low. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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