receiver sensitivity

On working The sensitivity and specificity were calculated by Receiver Operating Characteristic Curve ( ROC).

做操作者工作特征（ROC）曲线，计算诊断效度。

The analog Phase Locked Loop has high sensitivity and low measurement error, so it is widely used in the receiver of such equipment as interferometer, continuous-wave radar, telemetering device, etc. However, it has the problem of track stability.

模拟锁相环灵敏度高、测量误差小，因而大量地应用于干涉仪、连续波雷达、遥测等设备接收机中，但其存在环路跟踪稳定性的问题。

It can improve the signal-to-noise to over 3 and the receiving sensitivity can reach 10 μ V.For single track section, a 3~ 5 min time delay switch is fixed on the receiver.

对单线区间，在接收装置上设置1个3~5min延时开关；

Secondly, this paper does research on the performance of Relay access link receiver, and simulates and obtains the key performance indicator of the receiver such as reference sensitivity and dynamic range.

其次，对Relay access link接收机性能进行了研究，通过仿真获得了其参考灵敏度、阻塞特性、动态范围等接收机性能指标。

This system can calibrate a test system of GPS receiver by measuring RF hardware relatively and absolutely orientation information, and authentic CDMA mobile station GPS receiver sensitivity performance.

本文阐述了CDMA移动台GPS接收机测试系统相对位置定位和绝对位置定位的精确度进行校准，能够完成移动台GPS接收机灵敏度的认定工作。

It is found that selecting appropriate value of duty cycles of Gauss light pulse signal, frequency chirp and the roll-off factor of raised cosine pulse signal produced by the equalizer of an optical receiver can improve the sensitivity of the optical receiver.

发现适当选取高斯光脉冲信号的占空比、啁啾分量、光接收机均衡滤波器输出的升余弦频谱波形滚降因子的值可以提高光接收机灵敏度；

By receiver operating characteristic ( ROC) curve, BNP cutoff value of 12.75pg/ml had a sensitivity of 95.3%, a specificity of 80%, an accuracy of 87.8% for diagnosis in LVDD.

与正常对照组比较，当血浆BNP取值为12.75pg/ml时，诊断LVDD的敏感性为95.3%、特异性为80%、准确性为87.8%。

High sensitivity Satellite Receiver Module, Professional and High-efficiency antennae.

高灵敏度卫星接收模块, 专业高效天线.

Compared with P ( LN) ZT, the thickness vibration mode of 1-3 type piezoelectric composites is strengthened obviously, but electromechanical quality factor Q-m is reduced. All of these are in favor of increasing the emission efficiency and receiver sensitivity.

与纯P（LN）ZT压电陶瓷相比，1-3型聚合物/水泥基压电复合材料厚度方向振动增强，机械品质因数Qm明显降低，这有利于提高超声换能器的发射效率和接收灵敏度。

Ingenious circuits can be designed that correct for changes in the receiver sensitivity.

设计灵敏的电路,以便校正接收机灵敏度的变化.

The transmission systems based on phase modulation formats have higher receiver sensitivity and larger nonlinear tolerance than the transmission systems based on OOK modulation format. Therefore, the phase modulation formats are very suitable for the upgrade of the transmission systems.

与基于开关键控（OOK）调制格式的传输系统相比，基于相位调制格式的传输系统有较高的接收机灵敏度和较大的非线性容限。