例句與用法

1. The research of multipath parameter estimation algorithms and accomplishing them with software . to estimate multipath parameters , multipath delays must be estimated by code filtering in advance
   信道多徑參數(shù)估計(jì)算法的研究和軟件實(shí)現(xiàn)在估計(jì)多徑參數(shù)時(shí)，首先使用碼濾波方法估計(jì)出信號(hào)的多徑時(shí)延。
2. Firstly , the steering vector of mainpath of desired user is estimated by using code filtering method , then dummy signals are introduced , main lobe of wave is built by using the steering vector of mainpath of desired user and side lobes is constrained by using dummy signals
   該方法首先利用碼濾波的方法估計(jì)期望用戶主徑的波達(dá)方向，然后引入虛擬信號(hào)，利用期望用戶主徑的波達(dá)方向形成波束的主瓣，并利用虛擬信號(hào)抑制旁瓣。
3. In addition , the beamforming techniques for cdma systems are discussed emphatically . the algorithm based on code filtering is deduced in detail theoretically , and the performances such as convergence and bit error rate ( ber ) are simulated . meanwhile , we improve a decision - projected algorithm based on least - mean - square ( lms ) error
   論文重點(diǎn)討論了cdma系統(tǒng)的波束形成技術(shù)，在理論上詳盡地推導(dǎo)了基于擴(kuò)頻碼濾波的波束形成算法，對(duì)其收斂性、誤碼率等進(jìn)行了計(jì)算機(jī)仿真；針對(duì)基于最小均方( lms )誤差的一種判決映射算法進(jìn)行了改進(jìn)。