ID 原文 译文
50157 为了应对信道非线性特性引起的非线性失真，提高通信性能，研究一种Hammerstein信道非线性有记忆特性判定算法。 In response to the channel nonlinear distortion caused by nonlinear properties, improve the communication performance, research a kind of nonlinear Hammerstein channel decision algorithm with memory characteristics.
50158 基于GM线性模型辨识算法，引入复信号高阶累积量，推导复信号下Hammerstein线性模块辨识算法，并判定信道记忆特性。 Linear model identification algorithm based on the GM, introducing higher-order cumulant, complex signal Hammerstein linear module identification algorithm under complex signals is derived, and determine the channel memory characteristics.
50159 而后构造基于最小二乘的参数拟合模型，推导不同拟合阶数下线性和非线性信道拟合性能关系，并以此为依据完成信道非线性有记忆特性的判定。 Then constructed based on the parameters of least squares fitting model, is derived under different fitting order linear and nonlinear fitting performance channel relations, and on this basis to complete channel with nonlinear memory characteristics.
50160 仿真实验表明，算法对输入为多进制相移键控(multiple phase shift keying，MPSK)和多进制正交幅度调制(multiple quadrature amplitude modulation，MQAM)信号，最大非线性强度(max nonlinear intensity，MND)下的Hammerstein信道有较好的辨识性能。 Simulation experiments show that the algorithm of input for a binary phase shift keying (multiple phase shift keying, MPSK) and multi-band quadrature amplitude modulation (multiple quadrature amplitude modulation, MQAM) signal, the largest nonlinear strength (Max nonlinear intensity, MND) under the Hammerstein channel has good recognition performance.
50161 高频地波雷达飞行目标高度估计一直是工程上尚未解决的热点问题。 High frequency ground wave radar flight height estimation has always been the hot spot of the yet to solve engineering problems.
50162 然而在实际工程应用中，更加关心的是被探测到的飞行目标是高空还是低空的高度属性问题， In the practical engineering application, however, was more concerned about the detected flight target is the height of the properties of high or low,
50163 而且飞行目标高度属性判别研究比精确估计目标的具体飞行高度更有实际应用意义，且更容易在实际系统中实现。 and the flying targets highly discriminant research than estimate the target attribute specific flight height has more actual applied meaning, and easier to implement in the actual system.
50164 基于上述工程设计思想，提出高频地波雷达飞行目标高/低属性判别工程化方法，首次解决了高频地波雷达飞行目标高度属性判别问题。 Based on the engineering design, high/low flying high frequency ground wave radar target attribute discriminant engineering method, for the first time to solve the high frequency ground wave radar flight height attributes discriminant problem.
50165 所提方法利用垂直极化电波在高空和低空高度区域的不同电波传播衰减特性构建高度属性判别算法，不仅判别目标高度属性，而且给出高度属性判别可信度。 Proposed method of vertical polarization waves at high altitude and low altitude regions of different wave propagation attenuation characteristic building highly attribute discriminant algorithm, not only identifying target height attributes, and height properties given credibility.
50166 实测数据处理表明，所提方法能够利用少量观测数据快速判别飞行目标高度属性，可信度达到90%以上。 The measured data processing show that the proposed method can use a small amount of observation data identifying flight target height attributes, credibility of 90% or more.