ID 原文 译文
23815 同时该系统的算法复杂度较低，能更好地适用于人体轨迹的实时跟踪。 Moreover, the indoor localization and tracking can work in real time by using the proposed low complexity algorithm.
23816 匹配场处理通常要求接收基阵能够覆盖整个水层，如此大尺度的布阵方式严重阻碍了该方法的广泛使用。 The receiver array of matched field processing usually needs to cover the whole water column, such a large arrangement of array hinders its application seriously.
23817 为了缓解匹配场处理对阵形的苛刻要求，该文提出一种基于最小二乘的短垂线阵匹配场处理技术。该方法把接收阵的声场分解为模态函数矩阵和模态系数向量，并在最小范数意义下用最小二乘算法得到了各阶模态系数的估计值，在此基础上重新构造了短垂线阵的测量场向量，使得重构后的测量场包含更多的环境信息，从而提高了短垂线阵匹配场处理的性能。 To overcome this shortcoming, an approach called matched field processing based on least squares algorithm is proposed, which decomposes the received fields into depth function matrixes and amplitudes of normal mode at the beginning. Then all the mode amplitudes are estimated using the least squares in the sense of minimum norm. Next, the amplitudes estimated are used to reconstruct the received fields of the short vertical linear array, which makes the reconstructed ones contain more environmental information, therefore the performance of matched field processing with short array is improved.
23818 最后，在典型的 Pekeris 波导环境中进行仿真，以 3 种布放在水面附近的短垂线阵为例，分析了匹配场被动定位的性能，并用广义余弦量化分析了不同布阵方式对测量场的影响。 In the end, lots of simulations with three short vertical arrays which are located near by water surface are processed in the classical Pekeris waveguide, and the performance of matched field passive localization is evaluated. Meanwhile, in order to quantify the influence of different kinds of geometrical arrangements to the received fields, the generalized cosine-squared between two vectors is used.
23819 结果表明：使用最小二乘算法对短阵的测量场进行声场重构后广义余弦变大，此时短垂线阵匹配场处理的定位性能得到改善，验证了该算法的有效性。 The results show that when the received fields of short array are reconstructed using the least squares, the generalized cosine-squared is larger obviously, finally the performance of matched field passive localization with short array is improved and the proposed algorithm is proved to be effective.
23820 展宽现有卫星通信频段的带宽是增大通信容量的有效途径之一。 Broadening existing communication bandwidth is a key technology of satellite communication antenna.
23821 为将 C 波段通信接收频段带宽展宽为3.625~4.800 GHz，发射频段展宽为 5.850~7.025 GHz，该文设计了一种宽频带、结构紧凑、双线极化四端口馈源网络系统，通过采用宽带正交模耦合器与 E 面侧壁耦合 T-接头宽带频率双工器，拓宽了馈源网络的工作带宽，由于该工作频带超过了标准波导的工作带宽，网络各部件的设计采取了非标波导，该文设计了八边形过渡波导解决了系统各部件在整个频带内的匹配问题。 In order to extend the C band satellite communication, covering the receiving band 3.625~4.800 GHz and the transmitting band 5.850~7.025 GHz, a compact broadband four-port dual linear polarization feed network is designed. The broadband characteristics are achieved by employing a broadband orthomode transducer and two identical E-plane side coupling T-junction duplexers. The extended C band exceeds the bandwidth of a standard rectangular waveguide, so an octave bandwidth concept for compact waveguide transitions based on the use of octagonal-shaped sections is presented. A prototype of the feed network is developed.
23822 研发和测试了该馈源网络系统，测试与仿真结果吻合良好。 Simulated and measured results show good agreements.
23823 实测结果表明，所有端口电压驻波比小于 1.35，插入损耗小于 0.5 dB，收发隔离度大于 95 dB。 Measurements show that, this compact 4-port network provides Voltage Standing Wave Ratio (VSWR) better than 1.35 in all ports, insertion losses less than 0.5 dB, isolation Tx/Rx greater than 95 dB.
23824 在异构无线网络中，针对终端不同类型的应用在服务质量(QoS)需求上的差异，该文提出一种面向终端个性化服务的模糊垂直切换算法。 Considering the differences in Quality of Service (QoS) requirements of different application classes in heterogeneous wireless networks, this paper proposes an individualization service oriented fuzzy vertical handover algorithm.