| ID | 原文 | 译文 |
| 53897 | 本文在基于LibriSpeech仿真的多通道版本数据中进行实验，在评估指标SDR和SI-SDR上相比于单通道基线获得了明显的提升，并取得超越最先进的自组织麦克风多通道方法的效果。 | We achieved significant improvements on the simulated multichannel LibriSpeech corpus in the evaluation metrics SDR and SI-SDR compared to the single-channel baseline, achieving results comparable to the state-of-the-art(SOTA) ad-hoc microphone multichannel approach. |
| 53898 | 为了减小低信噪比下干扰和噪声对跳频信号检测的影响，提出一种基于时频分析的多跳频信号盲检测算法。 | In order to reduce the influence of interferences and noise on frequency hopping signal detection under low signal-to-noise ratio, a blind detection algorithm for multi-frequency hopping signals based on time-frequency analysis is proposed. |
| 53899 | 针对跳频信号、定频信号、高斯白噪声具有的不同时频分布特点，该算法利用短时傅里叶变换得到的时频图构造时频对消比; | Considering the different time-frequency distribution characteristics of frequency-hopping signals, fixed-frequency signals, and Gaussian white noise, the time-frequency cancellation ratio is constructed by using the time-frequency map which is acquired from short-time Fourier transform. |
| 53900 | 理论分析得到各信号的时频对消比是不同的，因此将其作为检测统计量，实现高斯白噪声背景下跳频、定频信号的盲检测。 | It is used as the detection statistics because the value of the time-frequency cancellation ratio of each signal is different by the theoretical analysis, and the blind detection of frequency hopping and fixed frequency signals under the background of Gaussian white noise is achieved. |
| 53901 | 仿真结果表明，本文算法具有抗噪声功率不确定性能; 与改进型功率谱对消法相比，本文算法在低信噪比环境下，具有更高的跳频信号和定频信号检测概率。 | The simulation results shown that this algorithm has good robustness to noise power uncertainty, and compared with the improved power spectrum cancellation method, this algorithm has a higher detection probability of multi-frequency hopping and fixed frequency signals in a low SNR environment. |
| 53902 | 此方法也能实现存在定频信号、扫频信号和突发信号干扰的复杂电磁环境中跳频信号盲检测，当信干比为5 dB且跳频信号的检测概率达到100%时，本文算法比改进型功率谱对消法改善信噪比10 dB; 在干噪比为0. 05 dB时的虚警概率几乎为0。 | This algorithm also can achieve the blind detection of multi-frequency hopping signals in a complex electromagnetic environment where the fixed-frequency signals、sweep signals and burst signals exist as jamming signals, it can improve the signal-to-noise ratio by 10 dB compared with the compared method, when the signal-to-interference ratio is 5 dB and the detection probability of frequency-hopping signals reaches 100%; and the false alarm probability is close to 0 when the interference-to-noise ratio is 0. 05 dB. |
| 53903 | 针对多径情况下存在一阶多普勒变化率的高动态二进制偏移载波(Binary Offset Carrier，BOC)信号捕获困难的问题，本文提出了基于部分匹配滤波器(Partial Matched Filter，PMF)和分数阶傅里叶变换(Fractional Fourier Transform，FRFT)相结合的多径情况下高动态BOC信号的捕获算法。 | In order to solve the problem of difficult acquisition of high dynamic binary offset carrier(BOC) signal with first-order Doppler rate in multipath environment, this paper proposes a method based on partial matched filter(PMF) and fractional Fourier transform(FRFT) the acquisition algorithm of high dynamic BOC Signal in multipath environment is proposed. |
| 53904 | 该算法首先利用PMF对信号进行分段积分处理， | Firstly, the partial matched filter is used to process the signal by segments. |
| 53905 | 然后利用FRFT所具有的使不同的线性调频信号(Linear Frequency Modulated，LFM)在不同的FRFT域呈现能量聚集的特性确定直达信号， | Then, the direct signal is determined by using the characteristic of fractional Fourier transform that makes different LFM signals present energy aggregation in different fractional Fourier transform domains. |
| 53906 | 最后在直达信号所对应的最优FRFT域完成对BOC信号的捕获。 | Finally, BOC signal is captured in the optimal fractional Fourier transform domain corresponding to the direct arrival signal. |