polarization diversity造句
例句与造句
- In chapter 3 , a novel planar polarization diversity antenna that has two feed ports with more than 20 db isolation has been proposed
第三章提出了一种新型两端口平面极化分集天线。 - The performance of a planar polarization diversity antenna on the handset with optimum combining and equal ratio combining is then studied
用montecarlo仿真研究了采用最优合并和等比合并的手机上平面双端口极化天线系统的分集性能。 - The hardware design based on fpga is proposed , including the designs of a / d block , d / a block and the polarization diversity and combining block based on fpga
最后给出了基于fpga的系统硬件设计,硬件系统设计包括a / d模块设计, d / a模块设计,以及基于fpga的分集合并模块设计。 - In the traditional polarization diversity and combining scheme , differential mode loop and common mode loop is combined to lock in the phase and frequency of the diversity signals and remove the carrier frequency bias and doppler shift
传统的极化分集接收方案是将差模环和共模环相结合完成两路信号的同频同相锁定以及多普勒频率偏移的去除。 - Polarization diversity and maximum ratio combining ( mrc ) is used to restrain the sharp signal fading in the telemetry systems , in which the object is in flight at a high speed and rotating and in low elevation
在信号极化衰弱现象严重的环境中对快速飞行目标、低仰角运动目标以及旋转运动目标等进行遥测接收时,极化分集最大比合成技术可以有效的改善接收性能。 - It's difficult to find polarization diversity in a sentence. 用polarization diversity造句挺难的
- The simulation in quartusii for the blocks with fpga is proposed at last . compare with the traditional polarization diversity and combining receiver , the stability of the scheme proposed in this paper is better , the parameter of it is reprogrammable , and upgrading of the system is also easily . then the diversity
与传统的极化分集接收机相比,利用本文提出的系统设计方案设计的数字极化分集接收机具有工作更稳定,参数可编程以及便于系统升级等优点,这样就使得在一个硬件平台上实现不同参数分集接收成为可能。 - And diversity is a technique of extensive use and maturation , a technique of more inexpensive investment with more improvement in wireless communication . the common diversity be classified as space diversity , polarization diversity , frequency diversity , and time diversity etc . this paper focus on implement of space diversity and polarization diversity in digital field
无线传输在自然界中存在大量不相关的多径信号,分集技术是通信中的一种广泛应用的、成熟的技术,一种用相对较低廉的投资就可以大幅度的改进无线链路性能的强有力的接收技术。 - Because of the structure of the traditional polarization diversity and combining scheme is too complex , after researching the polarization diversity and diversity combining technology , a new structure of receiver is proposed . in this structure the uniform sampling second - order dpll is used to remove the frequency bias after frequency discrimination
该结构控制较为复杂,为此结合实际项目要求,在研究了极化分集接收关键技术的基础上,提出了一种改进的极化分集接收机结构,即在鉴频之后利用均匀采样二阶数字锁相环误差传递函数的高通特性去除各种频偏分量。