ID 原文 译文
40246 实验及仿真结果表明，该算法能有效去除频散对损伤成像结果的影响，从而有效地解决了传统波束形成算法的成像结果中存在伪影，且成像分辨率低的问题； Experimental and simulation results show that the algorithm can effectively remove the impact of dispersion on the imaging results of damage, thereby effectively solving the problems of artifacts and low imaging resolution in the imaging results of traditional beamforming algorithm.
40247 同时解决了谱矩阵求逆困难的问题，使得计算时间显著缩减。 This algorithm also solves the problem of difficulty in inversion of the spectral matrix, which reduces calculation time significantly.
40248 过引入目标存在状态变量，建立了结合目标检测与参数估计的统一系统模型。 A unified system model combining target detection and parameter estimation is established by introducing a target existence state variable.
40249 给出目标探测信息、检测信息和空间信息的严格定义，并证明探测信息是检测信息与已知目标存在状态的空间信息之和，从理论上解决了探测信息和检测信息的定量问题。 The strict definition of radar information, detection information and spatial information of target is given, and it is proved that the radar information is sum of the detection information and the spatial information of known of target states, which theoretically solves the quantitative problem of the detection information and detection information.
40250 推导出目标匹配和非匹配条件下检测信息的理论公式。提出了随机目标检测方法，并证明了目标检测定理。 We derive the theoretical formula of detection information under the condition of target matching and non-matching, propose a random target detection method, and prove the target detection theorem.
40251 目标检测定理指出，检测信息是可达的，反之，任何检测器的经验检测信息不大于检测信息。 The target detection theorem shows that the detection information is achievable, otherwise the empirical detection information of any detector is not greater than the detection information.
40252 本文提出的目标检测信息理论打破了纽曼-皮尔逊准则一统天下的局面，为目标检测的系统理论和设计方法开辟了新的方向。 The target detection information theory proposed in this paper breaks the dominance of the Neyman-Pearson criterion and opens up a new direction for the system theory and design method of target detection.
40253 语音欺骗是指通过录音、语音合成(Text-to-speech，TTS)、语音转换(Voice conversion，VC)等手段，将一段非法的、未经过自动说话人验证(Automatic speaker verification，ASV)系统认证的声音进行“修改仿冒”，以达到通过ASV系统检测的目的。 Speech spoofing refers to the technology of counterfeiting an illegal speech without the authentication by automatic speaker verification(ASV) system to the speech of a legally authenticated speaker by ASV through recording, text-to-speech, voice conversion and other means, so as to achieve the goal of passing the ASV system.
40254 随着人工智能和语音欺骗技术的发展，ASV系统在安全性方面遇到了严峻的挑战。 With the development of artificial intelligence and speech anti-spoofing methods, ASV systems have encountered severe challenges in security.
40255 检测输入ASV系统的语音的真实性，防止欺骗语音通过ASV的验证以提高ASV系统的安全性，是近年来语音领域研究的一个热点问题。 It is a hot topic in the field of speech research in recent years to detect the authenticity of the speech input to the ASV system and to prevent spoof speech from passing the verification of ASV to improve the security of the ASV system.