ID 原文 译文
53607 此外,为抑制噪声对相位提取精度的影响,本文提出根据相位的频谱特性设计滤波器的方法,进一步提高相推测速的精度。 In addition, in order to sup- press the influence of noise on the extracted phase, a filter design method based on the phase spectral characteristics is pro- posed, so as to further improve the accuracy of PDVM.
53608 最后通过仿真和实测数据验证了所提方法的正确性及其在低信噪比条件下的适用性。 Finally, the validity of the proposed method and its applicability under low SNR are verified by simulation and experiment.
53609 高速机动目标会在短时间内跨越距离单元( Range Migration,RM) ,并且由于目标机动性产生跨多普勒单元( Doppler Spread,DS) 等问题。 The high-speed maneuvering target would cross the Doppler unit and the Range unit in a short time.
53610 基于搜索的传统处理算法通过时间和计算量换取积累性能,不利于工程应用。 The traditional multi-dimensional search-based coherent integration method was not conducive to engineering realization.
53611 本文提出一种通过分段处理方式对回波进行相参积累的算法。 This paper presented a coherent integration algorithm for high-speed maneuvering targets based on segmented processing.
53612 该算法在保证子片段内回波 RM DS 问题可以忽略的前提下,将积累时间划分为若干个子片段。在该分段准则下通过 Radon-Fourier Transform( RFT) 对子片段进行处理。 In this algorithm, the Range Migration and Doppler Spread caused by the target acceleration could be ignored in sub-segment, and then the coherent integration of the echo signals in each sub-segment completed by Radon-Fourier Transform ( RFT) .
53613 随后,根据各子片段 RFT 积累峰值位置分布特性和相位差异,设计一种子片段间的相参积累方案,实现多个子片段间峰值能量的相参积累。 Then, according to the peak accumulation characteristics and phase characteristics of each sub-segment RFT, a coherent integration algorithm was designed among sub-segments to realize the accumulation of peak energy among multiple sub-seg- ments.
53614 所提算法在子片段内可以忽略目标机动性的影响,避免了子片段内目标机动参数( 加速度项) 的搜索,可在积累性能和计算效率之间取得良好平衡。 The proposed algorithm can ignore the influence of target maneuverability in the sub-segments, avoid the search of target maneuvering parameters ( acceleration) in the subsegments, and achieve a good balance between accumulation per- formance and computational efficiency.
53615 为了解决超密集网络中用户在移动过程中由于小区间干扰和负载不均衡导致的用户服务质量下降的问题,本文研究了一种面向负载均衡的主动切换策略, To mitigate the influence of inter-cell interference and load imbalance on the quality of service ( QoS) during the movement of users in ultra-dense network, this paper investigate a proactive handover strategy for load balancing.
53616 设计了一种基于双门限的移动切换策略,包含小区内的切换与小区间的切换。 We design a mobile handover strategy based on dual thresholds, including an intra-cell handover that dividing cell center users and cell edge users and an inter-cell handover.