ID 原文 译文
49086 基于核和灰度的区间灰数预测模型,初步解决了区间灰数序列预测问题,但模型中灰度预测值的确定方法存在不足,且模型不支持误差分析。 Interval grey Numbers based on kernel and gray forecast model, preliminary solve the problem of the interval grey number sequence prediction, the model of gray prediction method for determining the existence insufficiency, and the error analysis of the model is not supported.
49087 提出了合成灰数灰度的定义及其性质,据此分析了模型存在的问题,并建立灰度序列的预测模型实现灰度预测,以代替原有模型中灰度预测值的确定方法,从而改进和完善了原有区间灰数预测模型。 Puts forward the definition and properties of synthetic grey number of gray level, on the basis of analysis of the problems existing in the model, and establish the gray sequence prediction model to realize gray forecast, instead of the original model of gray prediction method for determining, so as to improve and perfect the original interval grey number prediction model.
49088 改进模型从核和灰度两个方面同时发掘区间灰数序列的内蕴信息与发展趋势,克服了原有模型存在的不足,且支持误差分析和精度检验。 Improved model from two aspects of nuclear and gray level and at the same time explore the intrinsic information and development trend of the interval grey number sequences, overcame the deficiency existing in the original model, error analysis and precision inspection and support.
49089 算例表明了改进模型的有效性和可用性。 Numerical example shows the effectiveness of the improved model and availability.
49090 借鉴模糊函数,对线性调频脉冲在匹配滤波下的移频干扰进行分析,重点对其性能参数(失配峰值损耗、干峰时刻、干噪比、干信脉宽比)进行推导。 Draw lessons from fuzzy function, under the matched filtering of linear frequency modulation pulse frequency shift jamming is analyzed, focusing on the performance parameters of the peak (mismatch loss peak moment, dry, dry to noise ratio, dry pulse width ratio) are derived.
49091 通过分析可知,当频偏比较小时,移频干扰产生与原信号相仿的波形输出,以欺骗干扰为主;当频偏比较大时,移频干扰产生的波形严重失真,以压制干扰为主。 Through analysis shows that when the deviation is small, and the original signal frequency shift interference of output waveform, give priority to with deception jamming;When deviation is larger, the influence of frequency shift waveform distortion seriously, give priority to in order to suppress interference.
49092 最后,运用雷达方程对这两类情况进行进一步分析。 Finally, using the radar equation in these two kinds of case for further analysis.
49093 针对机载前视平面阵列雷达杂波抑制问题,提出了一种利用阵列俯仰维自由度和慢时间自由度进行空时二维自适应处理的方法。 For airborne forward-looking planar array radar clutter suppression problem, this paper proposes a array pitch d freedom degrees of freedom and slow time space-time two-dimensional adaptive processing method.
49094 分析了该模型中杂波在俯仰-多普勒平面的分布规律,通过采用多普勒频移方法补偿了杂波的距离非均匀性,与常规方位-多普勒空时二维自适应处理方法不同,所提方法可以同时补偿杂波的主瓣和旁瓣。 Clutter in the model are analyzed in the pitch - doppler planar distribution, by using doppler frequency shift method to compensate the distance clutter heterogeneity, with conventional bearing - doppler space-time two-dimensional adaptive processing methods, the proposed method can compensate the clutter at the same time the main lobe and side lobe.
49095 最后通过仿真实验将所提方法与三维空时自适应处理、传统方位-慢时间二维自适应处理作了对比,证明了所提方法的优越性。 Finally, simulation results will be presented method and three dimensional space-time adaptive processing, the traditional orientation - slow time the comparison between the two-dimensional adaptive processing proves the superiority of the proposed method.