ID 原文 译文
48176 通过频谱累积量的不同分布情况,可以估计出正确的分组码长度。 Through the different distribution of spectrum cumulants can estimate the correct length of block code.
48177 同时从频谱累积量中找出码字生成多项式的根,进而得到码字的生成多项式。 At the same time to find a code word to generate from the spectrum cumulant polynomial roots, and then get the code word to generate polynomial.
48178 仿真实验验证了算法的有效性,并对算法的误码适应能力和计算复杂度进行了仿真分析,最后给出了在不同误码环境下最优的频谱累积次数。 Simulation experiments verify the effectiveness of the algorithm, and the error resilience and computational complexity of the algorithm are simulated analysis, finally gives the spectrum in different error conditions, the optimal cumulative frequency.
48179 复杂的成型工艺使得机载弹载天线罩罩体各处的材料介电常数往往不一致,这将影响带罩天线系统的电性能,需要通过修磨罩壁几何厚度来补偿材料介电常数偏差的影响。 Complex molding process for airborne missile radome cover material dielectric constant is often inconsistent in all parts of the body, this will affect the belt cover antenna system performance, through grinding jar wall thickness is to compensate the influence of the material dielectric constant deviation.
48180 提出了一种基于远场的天线罩壁厚修磨量的反求方法,根据带罩天线的远场计算公式,建立了求解罩体各处透射系数的反演模型, Is proposed based on a far field antenna cover thickness grinding amount of reverse method, according to the belt cover the antenna far field calculation formula of the cover body is developed throughout the inversion model of transmission coefficient,
48181 然后根据透射系数以及天线罩的外形、厚度等已知信息反求出各处的介电常数值,再按照电厚度一致的原则确定出壁厚修磨量。 and then according to the transmission coefficient and the shape and thickness of the radome dielectric constant value in all parts of the known information reverse out, then determine the wall thickness in accordance with the principle of the electric thickness consistent amount of grinding.
48182 此外又提出了一种不增加天线罩网格数的近场积分网格细化方法,提高了反演模型的精度。 In addition, put forward a kind of not increase the number of radome grid mesh refinement near field integral method, improve the accuracy of the inversion model.
48183 最后对某1.2m口径正切卵形天线罩进行了数值仿真,结果验证了所提方法的正确性和有效性。 The last of a 1.2 m diameter tangent ovate radome has carried on the numerical simulation, the results verify the correctness and effectiveness of the proposed method.
48184 现有直接信息采样(analog to information conversion,AIC)框架未考虑信号的轮廓在重构中占据特殊地位且对输入信号的有效性缺乏判断。 Existing information directly sampling (analog to information conversion, AIC) framework does not consider the outline of the signal occupy a special position in reconstruction and the validity of the input signal is a lack of judgment.
48185 针对这一问题,在压缩感知理论框架下,提出基于轮廓预提取的直接信息压缩采样理论。 In order to solve this problem, the compressed perception theory framework, based on contour information directly compressed sampling theory in the process of the extraction.