optimal receiver meaning in Chinese
最佳接收机
Examples
- This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver , studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels . the theory and key technical of adaptive modem is discussed . in the last , an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission , this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer
本文在对短波数传两种常见调制方式fsk及psk最佳解调性能分析的基础上，讨论了几种采用典型调制技术的短波数传系统(如时频调制、多进制频移键控慢跳频、 chess系统)原理、优缺点以及抗衰落和抗符号间干扰的性能；分析了自适应串行数传系统抗短波信道衰落和多径干扰的原理、关键技术；在本文的最后引入一种有望解决短波数传系统低效率状况的调制方式bcm -分组编码调制，给出了一个采用bcm技术与自适应均衡技术相结合的短波数传系统方案，并通过计算机模拟进行了初部验证。 - However , multipath components can be resolvable due to the autocorrelation of the spread spectrum signal , thus the optimal receiver equals coherent rake reception , i . e . maximum ratio combining the independent components which endure flat fading or frequency non - selective fading . synchronization of pn code and separation of resolvable multipath components need to estimate the exact time delay among the multipath components
但是利用扩频信号的自相关特性，可分辨多径可以被有效分离，最优接收机等效为对多个具有独立平坦衰落信道（或频率非选择性信道）特性的多径信号进行最大比合并，即相干rake接收。 - In this paper , according to the theory of signal detection and estimation , the optimal receiver pattern of pn code signal is introduced and theoretically , the relation curve of the probability of the correct detection with the input s / n ratio under the different probabilities of false alarm is illuminated
根据信号的检测和估计理论，文中分析了数字相关器实现伪码信号接收的最佳模型，从理论上计算了在不同的虚警概率下，检测概率随输入信噪比的变化曲线，并分析了doppler效应对伪码相关接收的影响。