偏联系数聚类和随机森林算法在雷达信号分选中的应用 
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Applications of Partial Connection Clustering Algorithm and Random Forest Algorithm in Radar Signal Sorting
图 & 表
图 1. 基于PCFCM-TLRF的雷达调制信号分选模型
Fig. 1. Radar modulated signal sorting model based on PCFCM-TLRF
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图 2. 4种模型的分选准确率与信噪比的拟合曲线
Fig. 2. Fitting curves of sorting accuracy and SNR for four models
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图 3. 各种调制信号的分选准确率与信噪比的拟合曲线
Fig. 3. Fitting curves of sorting accuracy and SNR for various kinds of modulated signals
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表 1雷达调制信号的参数设置
Table1. Parameter setting of radar modulated signals
| Signal | Samplingfrequency /MHz | Carrierfrequency /MHz | Encoding | Pulsewidth /μs | Bandwidth /MHz |
|---|
| LFM | 120 | 30 | | 10 | 20 | | NLFM | 120 | 30 | | 10 | 20 | | CW | 120 | 30 | | 10 | 20 | | BPSK | 120 | 30 | 13-bit Barker code | 13 | 20 | | FSK | 120 | 30 | 13-bit Barker code | 13 | 20 | | MPSK | 120 | 30 | Frank code | 10 | 20 | | QPSK | 120 | 30 | Frank code | 10 | 20 | | Note: LFM is linear frequency modulation; NLFM is nonlinear frequency modulation;CW is continuous wave; BPSK is binary phase shift keying; MPSK is M-ary phase shift keying; QPSK is quaternary phase shift keying. |
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表 2K-means算法、FCM算法、PCFCM算法性能比较
Table2. Performance comparison among K-means algorithm, FCM algorithm and PCFCM algorithm
| Data set | Algorithm | Meanaccuracy /% | Timeaverage /s |
|---|
| Iris Flowers | K-means | 85.53 | 0.1713 | | Iris Flowers | FCM | 93.00 | 0.2326 | | Iris Flowers | PCFCM | 99.75 | 0.1045 | | Wine Quality | K-means | 68.54 | 0.4387 | | Wine Quality | FCM | 70.22 | 0.6890 | | Wine Quality | PCFCM | 75.39 | 0.4264 |
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表 3SVM算法、RF算法、TLRF算法性能比较
Table3. Performance comparison among SVM algorithm, RF algorithm and TLRF algorithm
| Data set | Algorithm | Meanaccuracy /% | Test timeaverage /s |
|---|
| Iris Flowers | SVM | 92.67 | 0.0122 | | Iris Flowers | RF | 95.00 | 0.0350 | | Iris Flowers | TLRF | 99.17 | 0.0014 | | Wine Quality | SVM | 70.78 | 0.0437 | | Wine Quality | RF | 95.33 | 0.0272 | | Wine Quality | TLRF | 96.61 | 0.0017 |
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张萌萌, 刘以安, 宋萍. 偏联系数聚类和随机森林算法在雷达信号分选中的应用[J]. 激光与光电子学进展, 2019, 56(6): 062804. Mengmeng Zhang, Yi'an Liu, Ping Song. Applications of Partial Connection Clustering Algorithm and Random Forest Algorithm in Radar Signal Sorting[J]. Laser & Optoelectronics Progress, 2019, 56(6): 062804.
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