The broadband FM signals and the narrowband CF signals travel out to a target, reflect from it, and return to the hunting bat.
宽带FM信号和窄带CF 信号传输到目标，从目标反射回来，然后返回猎蝠。
Both images were made using narrowband filters and different color mappings.
两张照片都用窄波段滤光镜和不同颜色映射。
The wideband and narrowband correlations for two hydrophones were also calculated.
同时也计算了两个水听器噪声的宽带和窄带空间相关系数。
The hardware circuits of narrowband suppressing jamming for PRCPM fuze are implemented.
硬件上实现了伪码调相引信窄带压制性干扰。
Up to now, research on smart antenna has been restricted to narrowband wireless systems.
到现在为止，对于智能天线的研究仅限于窄带无线系统。
The detection problem of dim signal is studied based on narrowband dual-polarization radar system.
针对窄带极化雷达系统，本文研究了微弱信号的检测问题。
Analytical Propagation Expressions of Hyperbolic Secant Pulsed Beams with Narrowband and Broadband.
窄带和宽带双曲正割脉冲光束的解析传输式。
The gorgeous color image combines both narrowband and broadband images recorded using three different telescopes.
色彩斑斓的照片合成了用三架不同望远镜拍的窄频和宽频图像。
But when the frequency of components is too near, HHT cannot shift the narrowband signal because of mode confusion.
但由于模态混淆，当信号组合分量的频率太接近时，HHT常不能正确分解窄带信号。
A method of narrowband interference suppression in transform-domain, which is based on adaptive threshold, is presented.
对一种基于自适应门限的变换域窄带干扰抑制技术进行了研究。
Then, a method to solve the technical difficulties in the realization of the narrowband DQPSK transmitter system is proposed.
然后，针对工程实践，解决了窄带直接射频调制发射系统设计过程中出现的技术难点。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented.
提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
Two-way light signals were transmitted, collected and converted by using lens, beam splitters, narrowband filters and photo-detectors.
通过透镜、二向分光镜、窄带滤光片、光电转换器件实现了两路光信号的传输采集和转换。
According to the experiment, the plan on future narrowband ISDN is given. The properties and prospect of this primary ISDN are discussed.
在实验基础上，提出了未来窄带ISDN计划，分析了这种初级ISDN的特点及发展前景。
It includes narrowband images recorded using filters sensitive to emission from oxygen atoms, shown in blue-green hues, and hydrogen atoms in red.
图中包括了使用对氧原子放射物敏感的过滤器记录的窄频带图像，以蓝绿色表示，而氢原子以红色表示。
A new modulated lapped biorthogonal transform (MLBT) was introduced for narrowband interference suppression in spread spectrum communications.
引入一种新的调制重叠双正交变换(MLBT)用于扩频通信窄带干扰抑制。
The small signal analysis for high frequency modulation characteristics of specific wavelength laser diode with narrowband filter was presented.
采用窄带滤光片作为选频元件对精确波长激光器高频调制特性进行了小信号分析。
This article mainly expounds principles and methods of computer-aided diagnosis and debugging technology platform for cascaded narrowband filter.
本文阐述了建立级联式窄带通滤波器的计算机辅助诊断和协同调试技术平台的原理和方法。
The paper introduces development of narrowband SPA-H weathering steel by adopting the process of "converter-narrowband" instead of "EAF-narrowband".
采用“转炉-窄带”工艺路线开发生产SPA - H耐候钢带替代同品种“电炉-窄带”。
Starting from paraxial wave equation, analytical propagation expressions of hyperbolic secant pulsed beams with narrowband and broadband are derived.
从近轴波动方程出发推导了窄带和宽带双曲正割脉冲光束的解析传输公式。
The beamforming techniques used in narrowband systems are inadequate for wideband systems because they result in main-beam squinting and null shifting.
窄带系统中使用的波束形成技术对于宽带系统来说是不合适的，因为他们会导致主瓣偏斜和零陷偏移。
The subjective quality and performance of VMR-WB is superior to that of existing narrowband and wideband coding standards operating at the same bit rates.
在相同的速率下，VMR-WB语音声码器的主观质量和性能较现有的窄带和宽带编码标准都有明显的提高。
Furthermore, the change of the noise through narrowband filter and detection circuit and the effect on the radar tracking precision are analyzed in quantity.
对噪声经过窄带滤波、检波电路后的变化及其对雷达跟踪精度的影响进行了定量分析。
According to frequency spectrum transfer characteristic of modulation and demodulation, we think the position measurement noise is Gaussian narrowband noise.
根据调制解调的频谱转移特性，提出了有效位移噪声是高斯窄带噪声。
The results show that the EWC threshold method of complex wavelet transform can effectively suppress the periodic narrowband interference from GIS UHF PD signals.
研究结果表明：基于EWC阈值法的复小波变换能够有效地抑制GIS特高频PD信号中的周期性窄带干扰。
The essence of the fact that wideband signal can not be effectively transmitted using narrowband phased array in scenarios with large aperture and scan Angle is given.
以线性调频信号为例，揭示窄带相控阵在大孔径宽扫描角情况下不能有效发射宽带高分辨信号的实质。
For RFI and narrowband noise interferences, this dissertation studies notch filter and spectrum equilibrium and USES them to suppress narrow jammings in signal domain.
对于RFI和窄带噪声干扰，本文研究了频域陷波和谱均衡两种方法，并将之应用到信号域来抑制窄带干扰。
For RFI and narrowband noise interferences, this dissertation studies notch filter and spectrum equilibrium and USES them to suppress narrow jammings in signal domain.
对于RFI和窄带噪声干扰，本文研究了频域陷波和谱均衡两种方法，并将之应用到信号域来抑制窄带干扰。
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