Bandwidth Farthest Matching for High Receiving Sensitivity in Digital Channelized Receiver 带宽准匹配的高灵敏度数字信道化接收机
Simulation result shows: The digital scheme is practical, and high receiving sensitivity can be achieved as well as high accuracy of angel measurement. 仿真结果表明:本方案切实可行,并可解决高灵敏度检测以及高测角精度问题。天使(英文)
Portable equipment for measuring receiving voltage sensitivity of hydrophone at low frequency 便携式水听器低频接收电压灵敏度特性测量仪
A simplified method to calculate receiving voltage sensitivity of cylindrical PIEZOELECTRIC-PANELS at low frequencies 圆管状压电片低频接收电压灵敏度的一种简化分析法
Method: based on the hospital information system, using PowerBuilder work interface, receiving automatically the data of bacteria identification and medication sensitivity analysis by computer serial port. 方法:在医院信息系统的基础上,选用PowerBuilder9.0开发工作界面,利用计算机串口自动接收细菌鉴定、药敏分析仪数据。
The article analyses wide angle laser signal receiving system and the receive sensitivity of system, and studies the problems on circuits designing of laser receiving system. 对广角激光信号接收系统和系统的探测灵敏度进行了分析,研究了激光接收系统电路设计问题。
On the basis of detail introduction of structure and performances of all polarization maintaining fiber hydrophone element, the structure and characteristics of four element array have been described. The measurement results of frequency responses of array element relative receiving sensitivity and array directional responses have been given. 在详细介绍全保偏光纤水听器基元结构和性能基础上,描述了四基元阵列结构和特性,给出了光纤水听器基元相对接收灵敏度的频率响应和阵列指向性的测量结果。
The handset RF ( Radio Frequency) test mainly aims at the testing of the handset in three kinds of performance parameters as RF power, modulation quality and receiving sensitivity. 手机射频测试主要针对手机的三大类性能指标即发射功率、调制质量和接收灵敏度进行评估。
Discussion on EMC Measuring Technique& Selection of Receiving System Sensitivity and Receiver Bandwidth 电磁兼容性(EMC)测试技术探讨&接收系统灵敏度和接收机带宽的选择
It is pointed out that the coherent light-wave systems for space optical communication links are better between the GEO satellites, since the high receiving sensitivity is very important in this case. 指出对于同步卫星间这种超长距离的光通信系统,高的接收灵敏度是至关重要的,因而相干光通信技术更有优势;
By proposing a better device test scheme, the paper tests a variety of performance indexes, including transmitting light power, receiving sensitivity, saturated light power, and wave testing. 通过提出一个良好的测试方案,完成突发光收发器的多种性能指标测试,包括发送光功率、接收灵敏度、饱和光功率、波形测试。
As one of microwave receiving system modules, Low Noise Amplifier plays a decisive role on the entire system receiving sensitivity and noise performance. 低噪声放大器作为微波接收系统的重要组件之一,它对整个接收系统的接收灵敏度和噪声性能起着决定性作用。
It has higher receiving sensitivity and rate resolution factor. Its better capability of detect weak signal has attracted research and application of heterodyne detection more and more abroad. 外差探测具有高的接收灵敏度和速度分辨率,其良好的探测微弱信号的能力,使其研究应用越来越广泛。
Mainly through the way to increase the transmission power of the signal of the RF module, and improve the signal receiving sensitivity distance communication. 主要通过增加射频模块的发射功率和提高射频模块的接受灵敏度来实现远距通信。
Comparing to the direct-detection systems, the coherent-detection systems have higher receiving sensitivity and capacity, and can promote transmission distance. 与直接检测相比,相干检测系统的优势在于具有更高的接收灵敏度和频谱利用率,可以提高中继传输距离。
To improve the performance of the communication systems, the impact on the communication performance of optical components is analyzed in the paper, and the technology of coherent detection is adopted, which effectively can improve the receiving sensitivity, BER performance and the ability of anti-atmospheric disturbance. 为完善圆偏振通信系统系统,分析了光学元件对通信性能的影响,并提出采用相干接收技术等措施来提高系统的接收灵敏度、误码性能以及抗大气扰动的能力。
The probe of fluorescent receiving is studied on theory and experiment. Relation between tapered angle and minimal angle of fluorescence receiving is derived in the probe of fluorescent receiving. The condition of zero order system, the static sensitivity of fiber optic biosensors is researched. 4. 针对荧光接收探针来说,具体地从理论上和实验上研究了锥度角与最小荧光接收角之间的关系,同时,在零阶系统条件下,初步探讨了基于微通道的光纤生物传感器的静态灵敏度。
The primary advantage is receiving sensitivity, an important property of a communication system. 这种技术具有不少优势,其中最突出的优势体现在接收灵敏度上,这是通信系统的一个重要性能指标,尤其是在自由空间光通信系统中。
Coherent optical orthogonal frequency division multiplexing ( CO-OFDM) systems have the advantages of high spectrum efficiency, high communication capacity, strong resistance to chromatic dispersion and polarization mode dispersion, and high receiving sensitivity. 相干光正交频分复用(CO-OFDM)系统具有频谱利用率高、传输容量大、抗光纤色散和偏振模色散、接收灵敏度强等特点。
Modulated light is used as detecting signal in this system, photodiode area array is used as receiving module, which greatly improves the sensitivity and anti-interference ability of the system. 系统采取调制光源作为探测信号,采用光敏二极管面阵作为接收组件,大大提高了系统的灵敏度和抗干扰能力。
In this part, parameters mainly include the gain of transmitting antenna, the power of the transmitter, the gain of the receiving antenna and the sensitivity of the receiver. 这部分参数主要包括发射天线的增益、发射机功率、接收天线增益和接收机灵敏度。
Spectrometer system and optical receiving system are effectively coupled to reduce the loss of light energy and to enhance the sensitivity of the whole device. 3. 通过光学分光系统与光学接收系统的有效耦合,极大降低了光能的损耗,提高了装置的灵敏度。