Performance Analysis Concerning Anti-noise for Pseudo-random Code Phase Modulation and Pulse Amplitude Modulation Combined Fuze Based on Doppler Effect

Xin-gang, Zhou; Zhao, Huichang; Tu, Yanan; Li, Junhua

doi:10.3724/sp.j.1146.2006.02098

Cited by 4 publications

(3 citation statements)

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“…As well known, in the analog modulation system, the amplitude modulation (AM) of baseband signal, mainly includes, the conventional amplitude modulation, the suppressed carrier bilateral band modulation (DSB), the single side band modulation (SSB), and the vestigial sideband modulation (VSB). In practical application, it is necessary to select the appropriate modulation mode according to the requirements [2]. The main indexes to measure its merits and demerits are the effectiveness and the reliability.…”

Section: Introductionmentioning

confidence: 99%

Noise immunity performance analysis based on MATLAB various amplitude modulation methods

Yang

Zhang²,

Zhang³

2022

International Conference on Intelligent and Human-Computer Interaction Technology (IHCIT 2022)

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Analog modulation is one of the hot topics in current research. Digital technology cannot completely replace analog technology, and analog modulation is the basic method of communication. Researchers have found and proved that the anti-noise capability of the receiver can measure the reliability of the system, but there is still a gap in the research on the anti-noise performance of different modulation modes. Based on MATLAB, this study analyzes the influence of different modulation methods on the anti-noise performance by using program design and analyzes the anti-noise performance of each modulation method by contrast analysis and control variables, and compares the performance of each modulation method. Through the experiment of this study, it is found that the modulation regime gain G of different amplitude modulation modes is different, so each mode has different anti-noise performance. These different modulation modes have advantages and disadvantages, so in practical application, it is necessary to choose the appropriate modulation mode according to the demand.

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Section: Introductionmentioning

confidence: 99%

Noise immunity performance analysis based on MATLAB various amplitude modulation methods

Yang

Zhang²,

Zhang³

2022

International Conference on Intelligent and Human-Computer Interaction Technology (IHCIT 2022)

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“…In [12], the fuzzy function is used to study the anti-interference performance of FM continuous wave fuze. The literatures [13], [14] used the processing gain method to analyze the anti-interference of pseudo-code composite fuze. The literatures [15], [16] adopted the signal-to-interference ratio gain method to analyze the anti-interference performance of UWB fuze and pulse Doppler fuze.…”

Section: Introductionmentioning

confidence: 99%

Research on Anti-Jamming Technology of Chaotic Composite Short Range Detection System Based on Underdetermined Signal Separation and Spectral Analysis

et al. 2019

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The chaotic phase-modulated linear frequency modulation short-range detection system (CPLF-SrDS) is a new type of composite detection system. Compared with traditional methods, it benefits from the short-term randomness and long-term certainty of chaos and is more powerful in determining the distance. To design such a system, the key problem lies in robustly recovering the echo signal against externally suppressed interferences. Combining 4th-order cumulant and joint diagonalization, this paper first develops a new signal separation approach to realize an underdetermined separation of the echo signal and an interference signal from their mixture. Then, both bispectrum analysis and singular spectrum analysis are adapted to analyze the separated signals and extract their characteristic parameters. Furthermore, the GA-BP network is utilized to classify the echo and interference signals. Finally, the anti-interference analysis of this CPLF-SrDS is realized. The experimental results show the effectiveness of the proposed method in the presence of externally suppressed amplitude modulation (AM) interference and frequency modulation (FM) interference.

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“…With the rapid development of industrial electronics technology, lots of new fuzes are designed constantly [7][8][9]. Pseudo-random frequency hopping (PRFH) fuze [7,[10][11][12][13][14][15], is a product which applies pseudo random theory [16][17][18] and frequency hopping communication technology into the radio fuze. By adopting PRFH method to avoid some active jamming or natural jamming, it can not only enhance the fuze detectivity, but also can improve its anti-jamming and anti-interception performance.…”

Section: Introductionmentioning

confidence: 99%

Pseudo‐random frequency hopping fuze technology based on signal reconstruction

Tu¹,

Chen

2016

IET signal process.

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To solve the problems of poor fixed distance precision and difficult engineering implementation of the pseudorandom frequency hopping fuze, a new signal processing method for the fuze based on signal reconstruction is proposed in this study. First, the transmitted signal is used to generate a set of local reference signals for the matched filter. Then all the local reference signals are applied to coherent integrate with the reflected echo, respectively. Finally, any channel of these correlation peak values exceeding the presupposed threshold can be taken as fixed distance successfully. Furthermore, the relative speed between the missile and target can be approximately estimated by the corresponding channel number. The simulation results show that the method can detect the target precisely, which means that the problem of mismatched filter has been solved. Moreover, the method is easy to be implemented, which can greatly improve real-time property of the fuze, thus it has practical value for engineering application.

show abstract

Performance Analysis Concerning Anti-noise for Pseudo-random Code Phase Modulation and Pulse Amplitude Modulation Combined Fuze Based on Doppler Effect

Cited by 4 publications

References 0 publications

Noise immunity performance analysis based on MATLAB various amplitude modulation methods

Noise immunity performance analysis based on MATLAB various amplitude modulation methods

Research on Anti-Jamming Technology of Chaotic Composite Short Range Detection System Based on Underdetermined Signal Separation and Spectral Analysis

Pseudo‐random frequency hopping fuze technology based on signal reconstruction

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