The findings, which appear in the journal sleep, echo previous studies that have shown a link between sleep difficulties and health problems such as obesity and high blood pressure.
发表在睡眠杂志上的研究结果，与之前的一些显示睡眠困难和健康问题例如肥胖和高血压之间关系的研究相呼应。
Heavy rain is close connected with the deep convective cloud clusters and convective cells with the strong radar reflectivity, high echo top and big VIL.
强降水与深对流云团及雷达回波强度强、回波顶高、VIL大的强对流单体有密切的关系。
Heavy rain is closely connected with the deep convective cloud clusters and convective cells with the strong radar reflectivity, high echo top and big VIL.
强降水与深对流云团及雷达回波强度强、回波顶高、VIL大的强对流单体有密切的关系。
In the a high frame rate (HFR) ultrasonic imaging system, the weighting process by limited diffraction beams on echo signal takes the most of the calculation time for constructing an image.
在高帧率超声成像算法中，对回波信号进行有限衍射波束加权处理占用了成像中大部分计算时间。
High frequency ground wave radar for near ocean inspection and ocean remote sensor is a method that use ocean echo wave Dopier spectrum to deduce the parameters of ocean situation.
高频地波雷达近海监测和海态遥感技术是一种利用海洋回波多普勒谱反演海态参数的方法。
In high range resolution conditions, the migration of moving target causes the migration of echo envelop within multicycle integration time and brings the decline of detection performance.
在高分辨条件下，多周期积累时间内目标的运动会造成回波包络的跨单元走动，而距离走动带来了检测性能的下降。
The experiment indicates that it can output analog or digital radar echo data continually, and that it has PnP, good flexibility and high compatibility.
实验表明该信号源能够连续输出模拟或者数字雷达回波数据，具有即插即用、灵活性好、通用性强的优点。
Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances.
电离层高频反射回波的多普勒频移观测是研究电离层扰动的一个重要方法。
NLMS (normalized least mean square) algorithm is widely used in echo canceller. However, due to high correlation of speech signals, the performance of echo canceller based on NLMS is depressed.
NLMS算法是回声消除器中最常用的算法之一，然而语音信号的强相关性使NLMS(归一化最小均方)算法的收敛速度变慢。
Besides, the target echo signal is often weak with strong noise, so data acquisition (DAQ) card should sustain high sampling frequency and resolution.
由于目标回波的低信杂比，需要采集卡具有较高的采样率和分辨率。
According to characteristic of direct wave in PGPR echo, 2d filtering, matrix filtering and horizontal high pass filtering are tried to remove direct wave in PGPR echo.
针对PGPR回波中直达波的特性，尝试用二维滤波、模板滤波和水平高通滤波去除PGPR直达波并分析各个方法的利弊。
The problems of echo cancellation in the system of high rate data transmission are studied in this paper.
本文探讨高速数据传输系统中的回波抵消问题。
Ultrasonography showed high or equal echo for the tumors.
超声表现为高或等回声。
Realization of a practical and integrated adaptive echo canceller applies in high speed full duplex Modem is proposed in this paper.
本文提出了一种实用、完整的自适应回波抵消器，可用于实现高速调制解调器的二线全双工传输。
This paper attempts to preprocess ultrasonic signal by wavelet filtering based on the mathematical model of the ultrasonic echo, extracts weak echoes from signal with high noise background.
在超声反射回波的数学模型基础上，利用小波滤波方法对超声信号进行预处理，提取强噪声背景中的弱回波信号。
Obtaining radar echo of high-speed dynamic space target is the basis of research on space targets' electromagnetic characteristics, space targets exploration and recognition.
获取空间高速动态目标的宽带回波数据是进行空间目标电磁特性研究，开展空间目标探测与识别的基础。
To simulate the sonar echo of the underwater moving target, a high precision and multi-function underwater target simulation technique is proposed.
为了模拟水下运动目标的声呐回波，研究了一种高精度、多功能的水下目标回波模拟技术。
This thesis mainly discusses the front-end of the high-speed signal process in the system. Namely, it involves the radar echo video signal sampling.
本论文涉及的是该系统中高速信号处理的前端，即对雷达回波视频信号进行采集。
In order to receive the echo of the underwater target, a method to design a kind of high precision, wide dynamic range, general receiver is presented in this paper.
为了接收水下目标反射回波，研究并设计了一种高精度、大动态范围的通用水声接收机。
Laser echo array detection technology has the characteristics of high speed and low-power-consumption, which has been paid more and more attention.
激光回波阵列探测技术由于其低耗高速等特点，正在受到研究者日益关注。
In the process of target detection, depth bomb fuze will undergo the interference from echo signal of neighborhood bomb that is the primary factor which causes high false-alarm probability.
深弹引信在对目标进行探测的过程中会遇到来自邻近深弹回波信号的干扰，邻弹干扰是导致虚警概率增加的最主要因素。
To suppress ionospheric clutter in the echo signal of high frequency surface wave radar (HFSWR), a method to suppress clutter based on time-frequency analysis and eigenvalue decomposition is proposed.
针对高频地波雷达回波信号中的电离层杂波，提出了利用时频分析与特征值分解抑制杂波的方法。
This paper analyzes the technology with intra-pulse chirp and inter-pulse stepped frequency to obtain high-resolution range profile. The echo expressions of static and moving targets are derived.
本文分析阐述了利用脉内调频、脉间跳频技术获取距离高分辨一维成像的可行性，导出了静止目标和运动目标的回波表达式。
And a star will brighten the sky; songs of joy will echo on high!
又有景星照耀天空，喜乐之歌响彻高处！
In ideal circumstances, the back scattered echo signal of SAR is chirp signal. With synthetic aperture theory, high azimuth resolution imaging to distant targets can be attained.
理想情况下，SAR回波多普勒信号是线性调频信号，采用合成孔径原理提高方位向成像分辨率。
In ideal circumstances, the back scattered echo signal of SAR is chirp signal. With synthetic aperture theory, high azimuth resolution imaging to distant targets can be attained.
理想情况下，SAR回波多普勒信号是线性调频信号，采用合成孔径原理提高方位向成像分辨率。
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