Concurrent photonic measurement of angle-of-arrival and chirp rate of microwave LFM signal

Shangyuan Li; Haidong Cao; Xiaoping Zheng

doi:doi:10.3788/COL202018.123902

Chinese Optics Letters, 2020, 18 (12): 123902, Published Online: Oct. 26, 2020

Concurrent photonic measurement of angle-of-arrival and chirp rate of microwave LFM signal Download： 645次

Shangyuan Li ^*Haidong Cao Xiaoping Zheng

Author Affiliations

Beijing National Research Center for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

Figures & Tables

Fig. 1. Scheme diagram of the proposed approach.

下载图片查看原文

Fig. 2. Frequency-time two-dimensional (2D) image to illustrate the intrinsic feature of an LFM signal, and the dual-frequency generation using AMZI for concurrent measurement of TDOA and chirp rate.

下载图片查看原文

Fig. 3. Diagram of the whole measurement system.

下载图片查看原文

Fig. 4. Waveform and spectrum of the measured signal at different SNRs. (a) Waveform with $SNR = 9.6 dB$ shows the beating of two sinusoidal signals; (b) spectrum with $SNR = 9.6 dB$ shows two frequency peaks; (c) waveform with $SNR = - 10.4 dB$ shows nothing but noise in the retrieved signal; (d) spectrum with $SNR = - 10.4 dB$ is still able to reveal two frequency components.

下载图片查看原文

Fig. 5. Measured chirp rate versus SNR.

下载图片查看原文

Fig. 6. Measured two-tone spectrum at different time delays.

下载图片查看原文

Fig. 7. AOA measurement results and their measurement error at different SNRs. (a) AOA measurement results and (b) measurement error with $SNR = 9.6 dB$ . (c) AOA measurement results and (b) measurement error with $SNR = - 10.4 dB$ .

下载图片查看原文

Shangyuan Li, Haidong Cao, Xiaoping Zheng. Concurrent photonic measurement of angle-of-arrival and chirp rate of microwave LFM signal[J]. Chinese Optics Letters, 2020, 18(12): 123902.

Concurrent photonic measurement of angle-of-arrival and chirp rate of microwave LFM signal Download： 645次

Fig. 1. Scheme diagram of the proposed approach.

Fig. 2. Frequency-time two-dimensional (2D) image to illustrate the intrinsic feature of an LFM signal, and the dual-frequency generation using AMZI for concurrent measurement of TDOA and chirp rate.

Fig. 3. Diagram of the whole measurement system.

Fig. 5. Measured chirp rate versus SNR.

Fig. 6. Measured two-tone spectrum at different time delays.

Fig. 7. AOA measurement results and their measurement error at different SNRs. (a) AOA measurement results and (b) measurement error with $SNR = 9.6 dB$ . (c) AOA measurement results and (b) measurement error with $SNR = - 10.4 dB$ .

关于本站 Cookie 的使用提示

全站搜索

Concurrent photonic measurement of angle-of-arrival and chirp rate of microwave LFM signal Download： 645次

Fig. 1. Scheme diagram of the proposed approach.

Fig. 2. Frequency-time two-dimensional (2D) image to illustrate the intrinsic feature of an LFM signal, and the dual-frequency generation using AMZI for concurrent measurement of TDOA and chirp rate.

Fig. 3. Diagram of the whole measurement system.

Fig. 5. Measured chirp rate versus SNR.

Fig. 6. Measured two-tone spectrum at different time delays.

Fig. 7. AOA measurement results and their measurement error at different SNRs. (a) AOA measurement results and (b) measurement error with SNR=9.6 dB. (c) AOA measurement results and (b) measurement error with SNR=−10.4 dB.

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索

Fig. 7. AOA measurement results and their measurement error at different SNRs. (a) AOA measurement results and (b) measurement error with $SNR = 9.6 dB$ . (c) AOA measurement results and (b) measurement error with $SNR = - 10.4 dB$ .