In addition, some relevant problems about the spectrum sensing mechanism are studied with the emphasis on the adjustment and optimization of detection period.
另外，本文还研究了认知无线电的频谱检测机制问题，重点在于检测周期的调整和优化方面。
The oil and gas pipelines in our country have entered frequent accident period so it is important to conduct the research of pipeline internal detection.
当前我国油气管道已经进入事故多发期，开展管道内检测技术研究具有积极的现实意义。
Research in this paper is about the alternative rule of the axial force of supporting pole with different support height during the period of casting concrete through field detection.
本文通过现场检测实验，研究了不同高度支撑架内力随混凝土浇筑过程的变化规律。
The wobble has a period a fraction of the spin period, which would explain the strange X-ray pulse detection.
这种摆动随磁星旋转而变化，这就能够解释探测到的奇怪X射线脉冲。
To ensure the anodic corrosion cathodic protection system working effectively over a long period of time, regular detection and maintenance of the system should be made.
为确保牺牲阳极阴极保护系统长期有效地工作，应当定期检测与维护。
The detection and parameter estimation of DS signal are studied in this paper. Cyclic period chart spectrum estimation is used on parameter estimation.
本文研究了直扩信号的检测和参数估计两方面内容，参数估计使用了循环周期图谱估计方法。
This method can be applied to the built in self test of equipment and accomplish on line fault detection of period signals.
该方法可应用到设备内部自测试中，并可完成周期信号的在线故障检测。
Simulations proved that the direct approach possesses better fault detectability than indirect one, but the selection of sample period had obvious affection on effectiveness of direct fault detection.
仿真结果表明，直接故障检测方法比间接故障检测方法具有更强的故障检测能力，但采样周期的不同选择对直接故障检测方法的有效性有直接影响。
Any defect that could not be detected by a thorough examination within this period shall be notified to WIRTGEN CHINA in writing immediately after detection.
任何在该期限内无法通过彻底检验发现的瑕疵应在发现后立即书面通知WIRTGEN CHINA。
In period of skin detection, we adopted an effective skin color model by studying the former work and based on this we carried out skin detection through simple and statistical texture character.
在皮肤检测阶段，在总结前人工作的基础上，采用了一种有效的肤色检测模型，并在此基础上利用简单统计纹理特征进行皮肤检测。
A novel phase detection algorithm that does not need complete period sampling, phase-locked loops or complex electrocircuit hardware was presented in this paper.
本文提出了一种无需整周期采样、无需锁相环和复杂电路硬件的相位检测算法。
During the same period of tracking target, the IMMPDAF can manage radar too, such as adaptively selecting revisit time, detection threshold and radar waveform.
这样的整个过程，使得在跟踪目标的同时，也参与了雷达的管理，譬如自适应的选择采样时间、探测门限、探测波形。
Some methods of enhancing detection performance in dealing with the single pulse echo signal and the multi-period pulse bunch echo signal by accumulating are summarized.
阐释了单个脉冲回波信号和多周期脉冲串回波信号，利用积累来提高检测性能的多种方法。
"Chen Qingfeng said that even the most advanced detection means, do not rule out the missing individual in the" window period "of HIV infection."
陈清峰表示，即使使用最先进的检测手段，也不排除漏掉个别在“窗口期”的艾滋病病毒感染者。
This article introduces a technology of time amplifier based on frequency converter. It can be used for phase detection of sine period signal or determination of time delay.
本文介绍一种基于频率变换的时间放大技术，可用于正弦周期信号的相位精确测量或延迟时间测量。
Objective To evaluate the performances of HCV core antigen(HCV-cAg)testing in comparison to HCV RNA and Anti-HCV detection during the preseroconversion period.
目的探讨丙型肝炎病毒（HCV）核心抗原酶联免疫诊断试剂检测早期HCV感染“窗口期”样本的可行性。
Window period to detect HIV antibodies generally at 2-8 weeks, blood donors may also be in the window period for detection is also not have been "stained Ai."
窗口期检测出艾滋抗体一般在2到8周，献血者也可能处于窗口期，也检测不出已经“染艾”。
And the USES of results of statical and dynamical tests in damage detection during the service period of the bridge we...
最后分析了该桥的静动载试验结果在桥梁运营后的损伤检测中的应用理论与方法。
The detection of the freshness of fish stored up at different temperature and with different period was considered here with UV spectrophotometry using two pattern recognition techniques.
利用模式识别技术与紫外分光光度分析法结合，根据鱼肉中的肌苷酸和肌苷的含量对鱼肉鲜度进行了识别。
However, case detection rates, after a period of acceleration, leveled off in 2007 at around 60% globally, short of WHO's goal of 70%.
然而，全球病例检出率在经历一个加速期后，于2007年平稳保持在60%左右，低于WHO设定目标70%。
Because the rich protein a can conjugate a lot of antibodies, the sensitivity of detection is much increased, and the cycle period of detection is reduced.
由于金黄色葡萄球菌表面丰富的A蛋白能结合大量抗体，大大提高了检验方法的敏感性，缩短了检验周期。
Spleen deficiency group: 10, making models and gastrointestinal bioelectric detection at the same period with experiment group, but without any drug.
脾虚组10只，与实验组同期造模给予胃肠生物电检测，但不用任何药物；
Healthy rats group (referred to as the blank group) : normal rats 10, with the gastrointestinal bioelectric detection at the same period with the above two groups.
空白组：正常大鼠10只，与上两组同期检测其胃肠生物电。
Big data can be used to determine circular trading or trade manipulation patterns for a given instrument in a specific period of time and thus increase detection of internal trading.
大数据可以用来分辨特定期间的循环交易和交易操纵，用以增加对内部交易的识别。
A driver output is provided to output the PWM duty pulse and the detection pulse to the LED within the modulation period.
所提供的驱动输出可在调变周期期间将脉宽调变工作脉冲以及侦测脉冲输出至led。
The LED driver also includes a detection controller to receive detection data indicating whether the LED is to be detected during the modulation period.
LED驱动器也包括侦测控制器，用以接收指示在调变周期期间LED是否被侦测的侦测资料。
Preventive medication is irregular used in perioperative period. And the pathogenic detection rate is lower.
主要存在问题使用指征过宽，围手术期预防用药不规范，病原学送检率低。
Preventive medication is irregular used in perioperative period. And the pathogenic detection rate is lower.
主要存在问题使用指征过宽，围手术期预防用药不规范，病原学送检率低。
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