1)  Phase frequency response
相频响应
2)  phase-frequency error
相频响应误差
1.
Influence of filter phase-frequency errors on broadband beamforming;
但滤波器相频响应误差的存在会对自适应宽带波束形成的性能造成影响。
3)  phase frequency
相频
4)  phase frequency characteristic
相频特性
1.
The tester for frequency response characteristic based on DDS is introduced, it uses micro controller as the key device, to measure the frequency characteristic of network, then display amplitude and phase frequency characteristic curves with LCD and print them.
介绍了基于DDS设计的频率特性测试仪,整个系统以单片机为控制核心,实现了对被测网络频率特性的测量,用液晶显示器LCD显示幅频特性和相频特性曲线,同时还可打印频响曲线。
5)  phase-frequency characteristics
相频特性
1.
The curves of amplitude-frequency and phase-frequency characteristics were obtained based on the derived frequency characteristic equations.
在导出的频率特性方程的基础上,仿真得到相应的幅频特性曲线和相频特性曲线。
2.
Via a special test circuit,the amplitude and phase-frequency characteristics o.
通过专用测试电路,获得了这种衰减器的幅、相频特性,并成功应用于某型号产品的和差波束形成网络的设计。
6)  phase-frequency characteristic
相频特性
1.
In view of the distribution of different frequency in terms of phase-frequency characteristic, the polarity of zero sequence transient current in fault line is demonstrated to be opposite to those in healthy feeders in the selected frequency band (SFB).
根据线路的相频特性将频率分为不同的区段,论证了在选定频段(SFB)内,小电流接地系统健全线路零序电流极性与故障线路相反;应用小波包以适当频率带宽对各线路的暂态零序电流进行分解,小波包系数的符号表示相应频段零序电流的极性;在SFB内按照能量最大的原则,确定各线路暂态零序电流分布最集中的频带所对应的小波包分解树节点,通过比较所有线路暂态零序电流在各自能量最大节点处的小波包分解系数的极性,自适应地实现故障选线。
2.
It can be used to measure the amplitude-frequency characteristic and phase-frequency characteristic of the unknown network, and give the real-time the transmission-characteristic measurement of the unknown network.
扫频仪也称频率特性测试仪,用于测试网络的幅频特性和相频特性,在现代电子测量中占有重要的位置。
参考词条
补充资料：幅频响应
分子式：
CAS号：

性质：也称幅频响应，称频响。线性系统在正弦信号输入下，其输出响应达到稳态后应是一个与输入信号频率相同的正弦信号，但输入及输出正弦信号的振幅和相位不相同，它们和系统的动态特性及输入信号的频率有关，我们称系统对正弦输入的稳态响应为频率响应。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。