shortwave communication造句
例句與造句
- shortwave communication plays a vital role in long haul communications, on account of its unique merits such as low cost, convenience to be generated and strong resistance to damage
短波通信具有成本低、架設(shè)靈活、抗毀能力強等優(yōu)點,在遠距離通信中起著舉足輕重的作用。 - in modern shortwave communication, the length of signal existence time in single channel is very short for reducing the probability of being intercepted, thus the difficulty of signal detection and extraction increased
摘要在現(xiàn)代短波通信中，作為低截獲率通信手段之一，單個信道內(nèi)信號持續(xù)時間大大縮短，從而增加了信號檢測與提取的難度。 - the physical simulation of shortwave channel enables researchers to simulate particular channel environment in the lab, which is beneficial to the research and test of shortwave communication system . thus it has marvelous value of application
短波信道的物理仿真,使人們可以在實驗室里仿真特定的信道環(huán)境,從而有助于短波通信系統(tǒng)的研究和測試,具有重要的應(yīng)用價值。 - this paper researches the integrating application of adaptive antenna array technology, spread-spectrum communication technology and transform-domain filter technology in shortwave communication area, basing on the background of improving on the shortwave communication equipments being used in chinese army, and all the key techniques mentioned above are implemented in a single fpga chip
本文以改造我軍現(xiàn)役短波通信設(shè)備為背景,研究了自適應(yīng)天線陣技術(shù)、擴頻通信技術(shù)、變換域濾波技術(shù)等多種現(xiàn)代數(shù)字信號處理技術(shù)在短波通信中的綜合應(yīng)用,并以單片超大規(guī)模fpga芯片為硬件處理平臺,對系統(tǒng)中的關(guān)鍵技術(shù)進行了設(shè)計與實現(xiàn)。 - this paper researches the integrating application of adaptive antenna array technology, spread-spectrum communication technology and transform-domain filter technology in shortwave communication area, basing on the background of improving on the shortwave communication equipments being used in chinese army, and all the key techniques mentioned above are implemented in a single fpga chip
本文以改造我軍現(xiàn)役短波通信設(shè)備為背景,研究了自適應(yīng)天線陣技術(shù)、擴頻通信技術(shù)、變換域濾波技術(shù)等多種現(xiàn)代數(shù)字信號處理技術(shù)在短波通信中的綜合應(yīng)用,并以單片超大規(guī)模fpga芯片為硬件處理平臺,對系統(tǒng)中的關(guān)鍵技術(shù)進行了設(shè)計與實現(xiàn)。 - It's difficult to find shortwave communication in a sentence. 用shortwave communication造句挺難的
- simulator presented in this paper provides a direct interface for the test of shortwave communication system, which well represents various features of hf channel such as multi-path delay, rayleigh fading, doppler shift, doppler spread, gaussian noise and impulsive interference, etc . in order to realize the channel simulation for the intermediate frequency signal, we, inspired by the idea of soft-defined radio, bring forward a new design method that the channel simulator consists of several dsp chips
本文研制的仿真器提供接口直接對短波通信系統(tǒng)進行測試,能夠全面反映短波信道的多徑時延、瑞利衰落、多普勒頻移、多普勒擴展、高斯噪聲和脈沖干擾等特性。為了實現(xiàn)對中頻信號的信道仿真,開發(fā)出一個結(jié)合軟件無線電思想的由多個數(shù)字信號處理芯片構(gòu)成的短波信道物理仿真器。 - the ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time . in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time . the backscatter sounding of high frequency can diagnose the real-time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變,各向異性,非均勻、色散的復(fù)雜介質(zhì)。為了保證依賴于電離層進行的短波通信質(zhì)量,必須了解電離層的實時狀態(tài)信息。高頻返回散射探測可以實時監(jiān)測與短波通信或高頻天波雷達相關(guān)的天波傳播信道的狀態(tài),對短波通信和天波雷達工作起了重要的輔助作用。 - the ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time . in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time . the backscatter sounding of high frequency can diagnose the real-time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變,各向異性,非均勻、色散的復(fù)雜介質(zhì)。為了保證依賴于電離層進行的短波通信質(zhì)量,必須了解電離層的實時狀態(tài)信息。高頻返回散射探測可以實時監(jiān)測與短波通信或高頻天波雷達相關(guān)的天波傳播信道的狀態(tài),對短波通信和天波雷達工作起了重要的輔助作用。