英 [dɪrekˈtɪvɪti] 美 [dɪrekˈtɪvəti]
n. [电讯] 指向性;方向性
the property of a microphone or antenna of being more sensitive in one direction than in another
the antenna received signals with no directivity
同义词: directionality
the quality of being directive
同义词: directiveness
方向性-引用次数:74
complex ray theory; directivity; low sidelobe; antenna; radome.
复射线理论; 方向性; 低副瓣; 天线; 天线罩。
参考来源对天线罩影响天线辐射性能的分析
指向性-引用次数:30
择向性
导向性
指向性-引用次数:47
For a single vector sensor, the particle velocity sensor bears dipole directivity, so acoustic pressure and particle velocity combined processing can form the single side directivity of arbitrary bearing, which is functionary to suppressing the coherent interference.
对于单个矢量传感器,振速是具有偶极子指向性的,讨论了联合处理声压、振速信息可以得到任意方向的单边指向性,对抗已知方向的相干干扰有很大的作用。
参考来源矢量阵信号处理技术研究
方向性
导向性
方向性-引用次数:3
Ultrasonic is a Mechanical Wave, which can transfer power and has good directivity, better penetrating power and little attenuation.
超声波是一种机械波,具有振动和传递能量的性质,其最显著的特征之一就是传播的方向性好,穿透力强,在固体和液体中传播时能量的衰减小。
参考来源液体温度对声致发光强度的影响
方向性
指向性
方向性(Directivity):在相同的辐射功率下,某天线在空间某点产生的功率与理想无方向点源天线在同一点产生的功率的比值。
指向性 (Directivity) : 天线在特定的指向有较其它方向为强的电磁輻射场特性,称为该天线的指向性, 其定义为輻射源的最大輻射强度与平均輻射强度之比...
...型管体一体化设计技术5)配有结构简便的话筒咪座,方便不同的使用需求,可作网络沟通工具来使用技术指标:指向特性(Directivity):全指向频率响应(Frequency response):40-16500Hz灵敏度(Sensitivity Reduction):-46dB/Pa±3d信噪比S/N Ratio:大于56Db(More tha...
... directive定向指令 directivity定向功能 directlymappedcache直接映射高速缓冲存储器 ...
[电讯]指向性;方向性
The eXpression of directivity of far field and near field was derived.
推导出了此类换能器的远场指向性和近场声压的表达式。
Why is it necessary to explain the directivity of thoughts and provide clues?
为什么让别人感受到,为什么会有自我的思维指向和线索?
Simulated results show that the directivity and the gain of the array are improved.
模拟结果表明,天线阵的方向性以及增益都得到了加强。
The Creative IFP enables the satellites to deliver a wide acoustic sweet spot with a much improved sonic directivity to the listening area, giving music more focus while preserving tonal accuracy.
ENGADGET: Creative T3150 delivers stealthy, 2.1-channel Bluetooth audio on the cheap