查询词典 sequential likelihood ratio test

To obtain appropriate signal processing methods, the identification algorithm of leak signal based on Sequential Probability Ratio Test is put forward.

为了得到合适的信号处理方法，提出了基于SPRT的泄漏信号的识别，综合了假设检验、序贯分析来提高管道泄漏检测系统的灵敏度。

Sequential Probability Ratio Test that needs fewer samples was used for fault decision.

故障决策采用需要样本较少的序列概率比方法。

The residual is generated with the method based on mathematical model and an improved sequential probability ratio test is put forward for failure detection to decrease the time used for residual-judge.

用基于模型的方法获取故障状态下的系统残差，并用一种改进的时序概率比检验进行残差判决，缩短了残差判决的时间。

Little offset fault ; fault detection ; Kalman filter ; sequential probability ratio test

小偏置量故障；故障检测； Kalman滤波器；序贯概率比检验

A new method for track initiation in clutter environment is presented, which combines the sequential probabilistic ratio test and expectation maximization .

4将序列概率比检验和期望极大化算法相结合，提出了一种解决杂波环境下目标跟踪起始与终止问题的新方法。

Pipeline detection; small leakage detection; sequential probability ratio test; Kalman filter; LabVIEW

管道检测；小泄漏检测；序贯概率比检验法；卡尔曼滤波器； LabVIEW

Through the low cyclic load test of eight high strength concrete-filled square steel tubular columns, considering the effect of the axial compression ratio, steel ratio and slenderness ratio, the hysteretic curve, ductility, degradation of stiffness, energy dissipation capacity, failure mechanism and characteristics of the specimens were researched.

摘要］以轴压比、含钢率和长细比为参数，进行了8根方钢管高强混凝土柱的低周反复荷载试验，研究分析了该类构件的滞回曲线、延性、刚度退化、耗能能力、破坏机理和破坏特征；并与型钢高强混凝土柱的受力性能进行了比较分析。

Through similar simulation test of block top-coal drawing, the influence of coal block size and block position in top coal on the recovery ratio and drawing manner is studied. It is found that the drawing manner has the different adaptation to the top coal which has different block distribution. The caving capacity is mainly decided by the block size. The top-coal which has layer difference of block with the same size has different recovery ratio. It is shown, that, to the given top-coal blocks, the recovery ratio of uniformly mixed blocks is maximal in the manner of drawing at interval of one support.

研究表明，顶煤块体大小是影响顶煤回收效果的主要因素，在顶煤块径一定的条件下，块体层位分布不同是造成顶煤回收率差异的主要原因，研究表明各级块度均匀混合时顶煤回收效果最好，块度从下向上增大分布次之，大块为中位顶煤时回收效果最差；各种放煤方式的适应性不同，各级块度均匀混合的顶煤适合用间隔放煤；块度从下向上增大适合用顺序放煤；大块在顶煤中位分布时，中硬煤以下适合用间隔放煤，硬煤应采用顺序放煤方式。

The effects of every main factors on extraction ratio are discussed, and the optimum conditions of extraction effective components from zizyphus jujuba are determined with the orthogonal test. Optimum conditions are obtained by using a new method of H2O2-decoloring in alkalescent condition, and effects of correlation factors on decoloring ratio are discussed. The yield ratio of polysaccharide is above 5.26% under these optimum conditions.

首先研究了不同提取过程中各因素对多糖提取率的影响，结合正交实验确定了微波最佳提取工艺条件；然后采用双氧水弱碱性条件下脱色新工艺，并对脱色各影响因素对多糖脱色率的影响进行了讨论，最终得出最优脱色条件，使多糖得率达到5.26％以上。

The likelihood ratio criterion of sphericity test, its asymptotic expansion and limiting distribution are obtained.

第二部分：考虑广义球形检验问题。论文得到了这个问题的检验准则，并给出了它的渐进展开。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。