频带

We define some perceptive parameters,such as the change of texture character,histogram,frequency spectrum,knowledge of image,and we calculate the perceptive information using sigmoid fu...

我们从图像灰度特征，直方图，频带，图像理解的变化等方面初步定义了图像感知信息参量，并利用sigmoid函数给出了感知信息的初步计算方法，实验结果初步说明了感知信息的有效性和可行性

The necessary frequency band width and dynamics of the expected amplitudes has not yet been conclusively clarified.

必要的频带宽度和动态的预期幅度尚未最后澄清。

Series digital geophones are mainly used in petroleum exploration. The series have wide frequency band,high spurious frequency and all parameters are controlled within 5%.

系列数字地震检波器主要用于石油勘探，具有宽频带和较高的假频，各参数指标容允差均在5%以内。

"He hypnotised everyone at Motorola to follow him," says Sean Maloney, a senior executive at Intel, the world's biggest chipmaker, who has himself spent several years championing WiMAX, an emerging mobile-broadband technology.

&西恩·玛洛尼是世界最大的芯片厂商英特尔公司的高级主管，曾亲自花了数年的时间推广WiMAX这项新兴的移动宽频带技术，他说：&库珀把摩托罗拉所有人都催眠了，让他们跟着他。

The broadband transmission-line transformer with 4:1 impedance transformation ratio is studied,its equivalent model with mutual coupling between transmission-lines is given,and its impedance transformation characteristics are analyzed.

研究了变换比为4：1的宽频带传输线变压器，给出了考虑线圈互耦的等效电路模型，分析了其阻抗变换特性。

Through inversing receiver function of 34 seismic stations, we obtain S wave velocity structures beneath the stations.

利用71个远震的波形资料，用接收函数方法提取了布设在长白山—镜泊湖火山区的34个宽频带流动数字地震台站的接收函数，通过对接收函数反演，获得了台站下方的S波速度结构。

To squeeze even more capacity out of the available airwaves , each band is divided up further into carrier waves , each 200 kilohertz wide see Figure .

榨取更大的容量出可用的电波，每个频带划分进一步上升到承运人的波浪，每200千赫广泛见图

For narrow-band signals, three uniform linear arrays, whose grating lobes are not overlapped by setting the angles between the arrays and the same pointing of main-lobes, are used and then multiplication of three patterns is operated to reduce the grating lobes of large-spaced array, which makes the array operate in broad band. For wideband or ultra-wideband signals, array pattern in the whole frequecy band is identical by designing the frequency-dependent weighting coefficients based on the Bessel function, and therefore grating lobes in high frequency parts are suppressed.

对于窄带接收信号，利用三个相交的大间距均匀线阵，通过设置它们之间的角度和主瓣指向相同使各自的栅瓣位置错开，然后把三个方向图相乘从而抑制大间距阵列栅瓣，因而适用于宽频带工作；对于宽带接收信号，利用Bessel函数设计与频率有关的加权系数，产生整个信号带宽内恒定的方向图，从而抑制了高频部分的栅瓣。

There is provided a data communication technique capable of flexibly assuring a band for a traffic generated and effectively using the access line or radio resource.

本发明提供能够对发生的通信量灵活地确保频带，又可以有效利用接入线路或无线资源的数据通信的技术。

In this dissertation, we focus on the design of the CPW-fed meander line slot antenna array for operational frequency band from 38 to 38.5 GHz.

本论文主要的研究目标是将共面波导馈入蜿蜒曲线形开槽阵列天线设计於工作频带为38GHz至38.5GHz。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。