fh的例句大全

To study the different characteristics and changes of fetus ? hydronephrosis ( FH ), and prevent unnecessary induced abortion.

目的:研究胎儿肾积水的不同特点及转归, 防范不必要的中止妊娠.

FH-40 C light fraction hydrofining catalyst is developed by Fushun Research Institute of Petroleum and Petrochemicals ( FRIPP ).

FH -40C 是抚顺石油化工研究院开发的轻质馏分油加氢精制催化剂.

FH-OFDM is a technology that combines frequency-hopping ( FH ) and Orthogonal Frequency Division Multiplexing ( OFDM ) .

跳频 - 正交频分 复用系统 是一种把跳频通信和正交频分复用相结合的技术.

FH composite fire retardant for PP tufting carpet using in back-coating latex have been presented.

研究开发了FH复合阻燃剂,用于背衬胶乳阻燃法阻燃丙纶簇绒地毯.

The synchronization system of Frequency-Hopping ( FH ) station requires well anti-jamming and security performance and quick synchronization.

跳频电台同步系统要求具有良好的 抗干扰性能 和保密性能,同时达到快速同步.

The simulation results show that the algorithm meets the requirements of FH communication systems.

仿真结果表明,该算法满足跳频通信系统的要求.

It inherits the anti multipath fading ability of OFDM systems and anti-interference of FH technology.

它同时兼有正交频分复用系统能有效对抗多径衰落和跳频技术抗干扰性能好的优点.

SNB , NP-FH , and SN-MP were increased by 1.56 ( P < 0.01 ), 2.66 ( P < 0.01 ) and 2.31 ( P < 0.01 ), respectively.

NP -FH 增加2.66 ( P<0.01 ), NA-PA 减少3.87 ( P<0.01 ),SN-MP增加2.31 ( P<0.01 ), 颌骨间矢状和垂直关系的不调得到明显改善.

Spread-frequency communication is a new kind of techniques one of which is Frequency-hopping ( FH ) .

扩展频谱通信 是一种新的通信方式.跳频通信是 扩展频谱通信 中的一种.

The generator of adaptive FH pattern is designed. By using it and the result of the LQA, adaptive frequency selection is accomplished.

设计了自适应跳频图案发生器，利用信道质量评估结果，完成了自适应频率选择。

These two bounds are compared with an existing NHZ FH sequences bound, showing that the second bound proposed in this thesis is tighter than the others.

论文将这两个理论界与目前已有的另一个NHZ跳频序列理论界进行了比较，分析和数值结果表明，本文提出的第二个理论界比其他两个界更紧。

An anti-jamming satellite communication system with high Gp based on OBP de hopping for multi FH as a whole

基于星上多路整体解跳处理的高增益抗干扰卫星通信系统

Based on the 3DES block cipher frequency-hopping ( FH) sequences, the paper suggests a kind of packet protocol for frequency-hopping multiple-access ( FHMA) networks.

基于3DES迭代型分组密码产生的跳频序列，构造了一种跳频组网的随机多址接入方案模型。

Based on block cipher FH sequences, we propose a generation method of AFH sequence.

在分组密码跳频序列的基础上，提出了一种适合于自适应跳频通信系统的跳频序列产生方法。

Compared with conventional FH communications, AFH has higher complicity of anti-interference and transmitting efficiency.

与常规的盲跳频通信相比，自适应跳频具有更好的抗干扰能力和通信效率。

Barrage jamming or track jamming can be used to the FH target.

对于采用了跳频技术的目标，可以采用阻塞式干扰或跟踪式干扰。

Performance analysis of block turbo code in short wave FH system with the barrage jamming

短波跳频系统中分组Turbo码在阻塞干扰下的性能分析

This paper simply introduces the method of producing frequency hopping pattern in frequency hopping communication system and emphatically analyses the FH code sequence complexity, and obtains some profitable conclusions.

本文首先简单介绍了跳频通信系统中跳频码序列产生的一般方法，接着重点探讨了跳频码序列产生的复杂度问题，得出了一些有益的结论。

Analyses of the FH Code Sequence Complexity

跳频码序列复杂度分析

SNB , NP-FH , and SN-MP were increased by 1.56 ( P < 0.01 ), 2.66 ( P < 0.01 ) and 2.31 ( P < 0.01 ), respectively.

NP -FH 增加2.66 ( P<0.01 ), NA-PA 减少3.87 ( P<0.01 ),SN-MP增加2.31 ( P<0.01 ), 颌骨间矢状和垂直关系的不调得到明显改善.