bandwidth range

Actual detecting environment is strictly controlled by embattling shape, which directly influences the precision, bandwidth and range of spectrum.

实际测向环境对天线阵的布阵形状要求较严，形状选择的合理与否将直接影响测向精度、测向带宽及测向频谱的范围。

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Minimum FBE as the genetic algorithm optimization goal, by selecting, crossover and mutation operations, genetic algorithm searches the optimal combination of center frequency and bandwidth within the range, then optimal filter is designed.

以频带熵最小为遗传算法的优化目标，通过选择、交叉、变异等操作，在取值范围内寻找最优的中心频率和带宽组合，设计优化滤波器。

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The two ultra-high frequency outer antenna sensors are made with wide band and narrow band respectively. The gain of two sensors is both greater than 1 and VSWR of the sensors is less than 2 in effective bandwidth range.

研制了宽带和窄带两种超高频外置天线传感器，两种传感器增益均大于1，驻波比在其有效带宽范围内均小于2，均能用于GIS局部放电超高频检测。

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Result shows that in the bandwidth range antenna with VSWR is less than 1.6 while the efficiency reaches above 30% and thus has proved that genetic algorithm is an effective method for designing matching network.

设计结果表明，天线在带宽范围内端口驻波比小于1.6（VSWR<1.6）同时效率达到了35%以上，证明了遗传算法是一种有效的设计匹配网络方法。

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According to the different bandwidth range, we give the different forms to expand the application scope of the formula and for each realization we give the non-planar structure.

根据带宽范围的不同，给出了应用于不同带宽的实现形式，扩展了公式的应用范围并针对每种形式提出了非平面实现结构，丰富了宽带滤波器的设计。

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In our country, affected by some factor, such as the net bandwidth, the range of Internet application and the Internet trade environment, the website remote monitor is developing slowly.

在我国，由于受网络带宽、互联网普及程度、网上交易环境等影响，网站远程监控这一行业发展相对较晚。

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Such limitations include computation ability, memory capability, power limitation and communication bandwidth and range. Many emerging wireless applications for emergency and military situations depend upon secure group communications. But group key management in sensor networks faces a great challenge because of the resource-limited.

然而由于传感器网络中节点的计算能力、内存容量、电能限制以及网络的带宽、无线传输能力等等的限制，使得传感器网络的组密钥管理面临巨大的挑战。

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