研究了基于时延估计的低空目标声测无源定位理论与算法。
The theory and algorithm for low altitude target localization based on time delay estimation (TDE) is studied.
声测管是灌注桩实行超声检测法时探头进到桩身外部的通道。
Acoustics detection ultrasound screening pile pipe is execute when the probe into the pile body external channel.
混凝土灌注桩用钢薄壁声测管是一种较新的声测管材，其连接方法目前没有统一的形式。
As a newly used material, steel thin-walled sonic-testing tubes used for the cast-in-situ piles have not a unified form of connecting.
在设计中，针对故障的不同形式，研究了声测法、脉冲磁场法、音频感应法等各种方法的原理。
In the design, in view of the breakdown different form, has studied the sound detection law, the pulse magnetic field law, the audio frequency induction method and so on each method principle.
方法应用皮肤电阻导电量测定技术及声测经络技术，将导电量较大，声波波幅值较高点确定为经穴点。
Method The position of acupoints will be located by the measurement of skin resistance and that of sound wave conducting in the Channel.
主要用于卡扣式声测管焊接处起到防护、防水作用，具有美观、高防水等性能，是声测管连接部理想的防护材料。
Used snap play Acoustic pipe welding protection, water effects, with a beautiful, high performance waterproof and so is the ideal sound of pipe junction protection materials.
针对广泛采用的平面四元十字阵定位方法存在的固有缺点，提出了基于五元十字阵的低空目标声测无源定位算法。
Considering the problems facing by the localization method for widely used four-element cross array, a five-element cross array scheme is proposed.
根据声测被动定位对声学基阵提出的要求，给出了当基阵尺寸较小的情况下，影响声测被动定位精度的关键因素。
Aiming at improving the precision of acoustic passive localization by small size array, we first derived eqs. 1 through 3 to describe the relation between time delay and target location.
通过对实际资料的试算表明，在声测资料较理想的情况下，重建的声波曲线与实测的声波测井曲线有很好的相关性，其相关值可以达到0.8以上。
Real data computation shows that the reconstructed acoustic logging trace correlates to the real one very well, with the correlation coefficient better than 0. 8 (under a desirable condition).
上个月，一个空气清新的早晨，在巴西维索萨联邦大学（Federal Universityof Viçosa, Brazil）宽敞的大厅里，杯测比赛（Cup of Excellencecompetition）正进行得热火朝天，大家能听到的只有此起彼伏的“啧啧”声。
ONE morning last month in an airy hall at the Federal University of Viçosa, Brazil, the only sound to be heard was a chorus of zestfully inelegant slurping.
还有很多其他的责备声，例如，东京电力在测量其中一个涡轮机的时候出现错误，测成了高出正常10倍而不是应提起警备的10万倍。
There is plenty of blame to go around. TEPCO wrongly measured radiated waters in one of the turbine halls at 10m times normal level, rather than the still-alarming 100,000 times.
这只12岁的猫的主人，诺桑·普顿匹茨福德的露丝·亚当和她当地的大学借来了测声仪器，录下她的猫的咕噜声申请吉尼斯世界纪录。
The 12-year-old feline's owner, Ruth Adams of Pitsford, Northampton, approached her local college about borrowing sound equipment needed to record the cat's purr for Guinness.
当声波与声-电转换器的主要测象限垂直时，其声波在主要测象限内产生的声-电电压最强。
When sound wave is perpendicular to the main measure quadrant of sound-electronic transducer, the most strong sound-electronic voltage will be produced.
本文以应用较多的光测技术为主，综述了细观力学测量中光、声、磁、射线等试验技术。
In this paper the measurement methods based on optics, acoustics, magnetics and radiology are mentioned for research of mesomechanics.
为了快速准确的找到电力电缆故障所发生的位置，研究了声磁传播时间差法测寻电力电缆故障点。
In order to locate power cable fault fast and accurately, the acoustic propagation time measurement was developed to detect cable fault.
对于某些由开关操作数得出喀呖声率的被测设备，目前大部分检测实验室的断续骚扰分析仪可能会漏计算一些开关操作。
For some of the equipments under test, those click rate are derived from the number of switching operation , some switching opertions maybe omitted unavoidably by the analyzer in most test laboratory.
本文利用伊藤引理和滤波原理，对指数价格进行一定的折旧修正和嘈声滤波，使得物业价格动态方程具有可测性。
According to Ito Lemma and Filtering theory, the property price dynamic process is adjusted based on the price index, and so it can be observed.
结果：20例(21耳)纯音测听、听觉诱发电位均异常，19例镫骨肌声反射及前庭功能异常。
Result: Pure tone and ABR waveforms were abnormal in 20 subjects (21 ears), moreover acoustic stapedius reflex and the vestibular function were abnormal in 19 subjects.
结果：20例(21耳)纯音测听、听觉诱发电位均异常，19例镫骨肌声反射及前庭功能异常。
Result: Pure tone and ABR waveforms were abnormal in 20 subjects (21 ears), moreover acoustic stapedius reflex and the vestibular function were abnormal in 19 subjects.
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