ID 原文 译文
49777 差分混沌相移键控(differential chaos shift keying，DCSK)技术具有较好的抗噪声性能以及较低的检测复杂度，但是其传输速率比较低。 Differential chaos phase shift keying (differential chaos shift keying, DCSK) technology has good anti-noise performance and lower the detection complexity, but the transmission rate is low.
49778 为了提高其传输速率，提出了一种基于空时块码(space time block code，STBC)技术的DCSK通信系统。 In order to improve the transmission rate, proposed a based-on space-time block codes (space time block code, STBC) technology of DCSK communication system.
49779 该系统充分利用了不同混沌信号之间具有较好的互相关性的特点，采用解码复杂度低的非相干解调技术，具有良好的抗噪声性能、不需要信道状态信息的优点。 Make full use of the system has good mutual correlation between the different chaotic signal characteristics, adopt low decoding complexity of noncoherent demodulation technology, has a good anti-noise performance and does not require channel state information.
49780 推导了在多径瑞利信道中STBCDCSK系统的误码率性能。 In the multipath Rayleigh channel was deduced STBCDCSK ber performance of the system.
49781 大量的仿真实验结果表明，提出的STBC-DCSK系统在损失了微小的系统误码率性能的情况下，进一步提高了传输速率。 A large number of simulation results show that the proposed STBC - DCSK system in lost a small under the condition of the system ber performance, further improve the transmission rate.
49782 免携带设备定位是利用目标对无线通信链路产生的阴影衰落来估计目标的位置。 Avoid carrying equipment positioning is to use the target shadow fading in wireless communication link to estimate the location of the object.
49783 针对现有算法定位精度有限、计算复杂度高等问题，在无线层析成像(radio tomographic imaging，RTI)的基础上提出了基于双重构的定位算法。 in view of the existing algorithm computational complexity is high, in the wireless tomography (radio tomographic imaging, RTI) based on double reconstruction is proposed on the basis of the localization algorithm.
49784 该算法利用正则化快速重构的特点，首先对目标进行初步的定位; The characteristics of the algorithm by using regularization fast reconstruction, first carries on the preliminary positioning on the target;
49785 其次将粗定位区域进行像素精确划分，同时利用链路选择法减少链路个数，降低算法复杂度; Second coarse positioning accurately dividing area of pixels, link selection method is used to decrease the number of links at the same time reduce the complexity of the algorithm;
49786 最后提出补空间稀疏度自适应匹配重构算法，将目标位置转化为稀疏信号重构问题，完成定位。 Finally fill the sparse degree of adaptive matching reconstruction algorithm, the target position into a sparse signal reconstruction, complete orientation.