The hydrophone is the bigger enough compared to the wavelength of the sound , the directivity is the more distinctness 成组光纤水听器尺寸越大,接收信号波长越短,其指向性越明显。
Because of the different time delay among multi - paths , the received signal undergoes frequency - selective fading 由于多径干扰之间具有不同的时间延迟，接收信号将承受频率选择性衰落。
They also showed activity in the hand area of the sensory cortex , the part of the brain that receives signals from the hand 他们在控制手部的感觉皮层也出现活动，这个部位是从手上接收信号的。
Analysis is performed both with and without the assumption that the received signal is gaussion to obtain the same conclusion 在假设接收信号是高斯和非高斯的两种情况下进行分析，得到了同样的结论。
A new method to estimate doppler centroid and doppler rate applicable to real flight condition is proposed 该方法设置飞机速率和脉冲重复频率比为常数，保证方位向接收信号均匀空间取样，使用实时最小二乘拟合算法。
For example , when the speed of transporting is very low , it is very difficult to track the receiver signal frequency through the common phase locked loop 如在传输数据速率较低时，普通锁相环来跟踪接收信号频率则很困难。
In radiocommunications , pertaining to variations in the received signal strength due to varying ionization conditions over the propagation path 在无线电通信技术中，接收信号的强度由于传播通路上电离条件的改变而引起的变化。
First , the mean - squared - error ( mse ) of the estimated position and the expectation of the error in estimated coordinate are calculated , based on which the performance of 这两种方法在接收信号数大于天线阵元数时均能有效估计期望用户的定位参数。
After the clusterheads are selected , the clusterheads advertise to all sensor nodes in the network that they are the new clusterheads 未被选择作为群头的传感器节点接收到这样的广播信息，根据预先设定的参数，例如信噪比、接收信号强度等来决定自己加入哪个群。
Exploiting the cyclostationarity of ofdm signals in multipath environment , we further introduce an ofdm coarse frequency error estimator and an ofdm fine synchronizer 利用接收信号的循环平稳性，结合信道响应提出了一种ofdm频偏粗估计器和一种ofdm定时偏差和频偏精估计器。
