Yuhua Xing, Zhiheng Yan. Research and Application of Third-Order Cumulants in Delay Estimation of Chaotic Spread Spectrum[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1907001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 19, 1907001 (2022)
Fig. 1. Schematic diagram of chaotic spread spectrum delay estimation
Fig. 2. Flow chart of chaotic spread spectrum delay estimation algorithm
![Results of basic cross-correlation calculation of short-circuit faults [signal-to-noise ratio (SNR) is -5 dB]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Results of basic cross-correlation calculation of short-circuit faults [signal-to-noise ratio (SNR) is -5 dB]
Fig. 4. Results of basic cross-correlation calculation of open-circuit faults (SNR is -5 dB)
Fig. 5. Results of secondary cross-correlation calculation of short-circuit faults (SNR is -5 dB)
Fig. 6. Results of secondary cross-correlation calculation of open-circuit faults (SNR is -5 dB)
Fig. 7. Correlation peaks of third-order cumulants of short-circuit faults
Fig. 8. Correlation peak of third-order cumulants of open-circuit faults
Fig. 9. Error curves of three methods
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Table 1. Simulation statistical results of time delay estimation
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