查询词典 sampling

In the second place, this paper uses the financial data reported by China's private listed companies and statistical analysis skills to test the theories and hypotheses. The research collects all required data from 2000 to 2002, examines the profit ability, the gain ability, the repay ability, and the cost control ability for all sampling listed companies by using Paired-Samples T test in the quantitative analysis section. The results show that these listed companies'profit decreases, income increases, repay ability enhances after the companies go public. Finally the paper takes the non-operating expenses as the illustrating index for the cost control capability of the companies to demonstrate that there is an obvious increase of non-operating expenses after getting great amount of money in IPO, in this sense it can be stated that there is the intendancy of low capital utility rate in private companies.

研究选用了描述性统计分析方法对样本企业IPO前后时段的财务指标进行了对比考查，并运用配对样本t检验方法进行了显著性检验，研究结果表明民营企业在IPO前后的盈利水平总体上是显著下降的；同时研究也显示虽然获利水平出现了小幅上升，但这是由于企业通过IPO融资增加了投资规模导致的；企业的偿债能力在IPO之后有明显的好转；研究最后以营业外支出作为企业成本控制能力的解释指标，发现企业在IPO上市融得大量资金后对主营业务以外的支出有明显的增多，可以判断民营企业存在资本利用效率低下的现象。

In the history of electrical communications, the earliest reason for sampling a signal was to interlace samples from different

在电子通讯的历史中，采用讯号取样的最早理由，是为了使不同的电报系统能够使用同一条电缆线互通有无。

The continuous interleave sampling is adopted to process speech signal, and wavelet transform is used in the CIS method.

语音信号处理主要采用连续交替采样方案，并将小波变换应用到CIS语音信号处理方案中。

After the analysis and comparison of the different speech signal processing methods, the continuous interleave sampling is chose to process speech signal, and wave transform is used in the CIS method.

经过对各种语音信号处理方案的分析、比较，采用连续交替采样的语音信号处理方案，并将小波变换应用到CIS语音信号处理方案中。3。

This thesis is focused on the study of 12-channel intermediate frequency sampling digital receiver array for one radar system.

本文以某雷达接收机为应用背景，开展了十二通道数字中频接收机阵列的研制工作。

In signal processing, second-generation enhanced intermediate frequency sampling speed and signal processing speed and capacity.

在信号处理方面，第二代提高了中频采样速度，并加强了信号处理的速度和能力。

We study the techniques of generating the PPM-PS signals and intermediate frequency sampling.

研究了脉位调制脉冲串信号的产生和中频采样技术。

The phase truncation noise was found to be related to the intermediate frequency sampling rate.

通过研究数控振荡器中相位舍位噪声的规律，得到了该噪声与数字中频采样率的关系，提出了基于减小相位舍位噪声的中频采样率优化方案。

According to classical interpolatory theory, two generalized sampling theorems are proposed and two interpolation formula which have stable and highly accurate recovery results are put forward.

根据经典的插值理论提出并证明了二个广义采样定理，在该定理中给出了具有稳定的、高精度恢复结果的采样和内插方式。

Compared with recovery algorithms which are based on Fourier transform, the interpolation formula of generalized sampling theorem one has much more highly accurate recovery result.

同其他基于Foureir变换理论的恢复算法进行了比较，计算结果表明：在相同条件下，定理一内插方式具有高得多的恢复精度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。