例句與造句

1. Methods of measurement on radio receivers for various classes of emission - receivers for frequency - modulated sound broadcasting emissions
   各種發(fā)射級(jí)別的無(wú)線電接收機(jī)的測(cè)量方法.調(diào)頻聲音廣播發(fā)射接收機(jī)
2. Methods of measurement on radio receivers for various classes of emission . part 4 : receivers for frequency - modulated sound broadcasting emissions
   各種發(fā)射分級(jí)用無(wú)線電接收機(jī)的測(cè)量方法.第4部分:調(diào)頻聲廣播發(fā)射用接收機(jī)
3. Methods of measurement on radio receivers for various classes of emission - part 4 : receivers for frequency - modulated sound broadcasting emissions
   各種發(fā)射類(lèi)別的無(wú)線電接收機(jī)的測(cè)量方法.第4部分:調(diào)頻聲音廣播接收機(jī)的射頻測(cè)量
4. Methods of measurement on radio receivers for various classes of emission - part 4 : receivers for frequency - modulated sound broadcasting emissions iec 60315 - 4 : 1997 ; german version en 60315 - 4 : 1998
   各種發(fā)射類(lèi)別的無(wú)線電接收機(jī)的測(cè)量方法.第4部分:調(diào)頻
5. Methods of measuring and expressing the performance of radio receivers for sound broadcasting - measurement on frequency - modulated receivers of the response to impulsive interference
   無(wú)線電廣播接收機(jī)性能測(cè)定及表示方法.第5部分:調(diào)頻接收機(jī)脈沖干擾響應(yīng)測(cè)量
6. It's difficult to find frequency-modulated in a sentence. 用frequency-modulated造句挺難的
7. Linear frequency - modulated ( lfm , chirp ) signal that is often applied in radar , sonar and communications system is nonstationary signal , in which the frequency varies with time
   應(yīng)用于雷達(dá)、聲納和通信等信息系統(tǒng)中的線性調(diào)頻( lfm , chirp )信號(hào)是非平穩(wěn)信號(hào),即頻率成分是隨時(shí)間變化的。
8. We modulate the amplitude of the continuous single tune jamming by noise and produce the continuous noise - modulated jamming . this kind of jamming is effective to pc radar including linear frequency - modulated radar and bi - phase coded radar
   在對(duì)單頻正弦波進(jìn)行噪聲調(diào)幅后形成的噪聲調(diào)幅干擾對(duì)線性調(diào)頻雷達(dá)和二相編碼雷達(dá)都是有效干擾，其干擾特性和射頻噪聲干擾類(lèi)似。
9. According to the target distance ( 5 ~ 50m ) , a c - band transceiver for ranging was presented in this thesis . the focus of this work was on designing a c - band frequency - modulated continuous - wave ( fmcw ) frequency source , a receiver and microstrip antenna
   本文針對(duì)所探測(cè)目標(biāo)的距離( 5 ~ 50m ) ,研制了c波段測(cè)距收發(fā)前端,主要包括c波段調(diào)頻連續(xù)波( fmcw )頻率源,接收電路以及微帶天線。
10. By analysis , two kinds of caq are found : one is width - modulated countable pulse series , the other is frequency - modulated countable pulse series . furthermore , the method of generating caq is described and its double features is also proved
    通過(guò)分析找到兩種計(jì)數(shù)型模擬量：調(diào)寬計(jì)數(shù)脈沖串和調(diào)頻計(jì)數(shù)脈沖串，同時(shí)本文也闡述了計(jì)數(shù)型模擬量的產(chǎn)生方法，并進(jìn)一步驗(yàn)證了它的二象性特征。
11. Continuous single tune jamming is an effective jamming to linear frequency - modulated radar . however it can not suppress signal output after being full of the sidelobe suppress filter of the jammed bi - phase coded radar , no matter how great the power of it may be
    單頻正弦波干擾對(duì)線性調(diào)頻雷達(dá)是一種有效干擾，但對(duì)于二相編碼雷達(dá)無(wú)論具有多大的功率在充滿二相編碼雷達(dá)接收機(jī)的旁瓣抑制濾波器后也不能壓制信號(hào)主瓣，因此是一種無(wú)效干擾。
12. Abstract : a software method of frequency - modulated signal demodulating based on wavelet packet is proposed in this paper . a variety of frequency - modulated signals are analyzed in time - frequency domain and the spectrograms are presented . this method can detect instantaneous frequency effectively and get frequency - modulated information , can be widely applied to dynamic testing and software radio
    文摘:提出了基于小波包的調(diào)頻波解調(diào)方法，通過(guò)對(duì)各種調(diào)頻信號(hào)進(jìn)行時(shí)頻分析，給出了信號(hào)的時(shí)間?頻率譜圖，能有效地檢測(cè)到瞬時(shí)頻率和獲取調(diào)頻信息，該方法可廣泛應(yīng)用于動(dòng)態(tài)測(cè)試和軟件無(wú)線電等領(lǐng)域。