ID 原文 译文
47856 系统在调节时间内会有超调等现象,使得系统的性能无法保证。 System in regulating can have overshoot phenomenon such as time, makes the performance of the system cannot be guaranteed.
47857 为了减少系统的调节时间,提出一种由逆向解算和正向解算形成的循环算法,导航计算机利用存储的信息在计算机内循环解算,以达到缩短调节时间的目的。 In order to reduce the system to adjust time, put forward a kind of calculation by the reverse, and positive cycle algorithm of calculating formation, circulate in the computer navigation computer use of stored information, in order to shorten the adjusting time.
47858 最后利用计算机进行仿真实验,结果表明所提方法能够有效缩短阻尼调节时间。 Finally using the computer simulation experiment, the results show that the proposed method can effectively shorten the damping adjustment time.
47859 具有良好性能的正交编码信号是相控阵-多输入多输出(multiple-input multiple-output,MIMO)雷达获得优良性能的前提。 Have good performance of the orthogonal coded signal is phased array - multiple input multiple output (multiple - input multiple output, MIMO) radar to obtain the excellent properties of the premise.
47860 为得到对接收端噪声容忍度更高的编码信号,利用改进的离散粒子群优化(discrete particle swarm optimization,DPSO)算法,以接收端匹配滤波之后输出信号的性能为代价函数,将编码设计转化为约束优化问题,设计了可灵活编码的正交相位编码信号。 To get higher coding signal to the receiver noise tolerance, using the improved discrete particle swarm optimization (discrete 'particle swarm optimization, DPSO) algorithm, at the receiving end matched filtering after the performance of the output signal as the cost function, coding design can be converted to constrained optimization problems, designs the flexible coding orthogonal phase coded signal.
47861 新算法得到的编码信号有较低的自相关旁瓣和互相关干扰,在匹配滤波时其对噪声的抑制要好于已有算法,且能有效分离出多个目标。 A new algorithm for coded signal with low autocorrelation sidelobe and cross-correlation interference, when the matched filtering the noise suppression are better than existing algorithms, and can effectively isolate multiple targets.
47862 仿真结果验证了算法的有效性。 The simulation results verify the effectiveness of the algorithm.
47863 针对传统卡尔曼滤波器用于高动态载波跟踪时性能不够理想的问题,提出一种基于机动目标模型匹配的卡尔曼滤波载波跟踪算法,能够在载波参数剧烈变化的条件下实现稳定的载波同步。 In view of the traditional kalman filter used for high dynamic tracking problem of performance is not ideal, and put forward a kind of kalman filtering based on maneuvering target model matching tracking algorithm, can be severe changes in carrier parameter under the condition of carrier synchronization is stable.
47864 所提算法较传统算法更加契合实际环境,具有实用价值高、应用范围广等优点。 Proposed algorithm compared with the traditional algorithm is more fit the actual environment, has the advantages of high practical value and application range.
47865 使用线性卡尔曼滤波器,无需矩阵求逆运算,计算复杂度低,便于工程实现。 Using linear kalman filter without matrix inversion, low computing complexity and convenient for engineering implementation.