1)tuner[英]['tju:n?(r)][美]['tun?]高频头
1.Realization of 8M Bandwith Digital Tuner in Cable Modem;电缆调制解调器中数字式8M带宽高频头的研制
2.Methods Analyzing the working principle of television s sound circuits,it has designed a kind of 45～870MHz all-channel sound receiver,using all-added tuner TDQ-3,circuits of TA7680 medium-frequency amplifier,the sound power amplifier integrated circuits LM386 and CD4022 integrated counter.方法分析了电视机伴音电路的工作原理,利用TDQ-3型全增补高频头、7680中放盒、LM386伴音功放集成电路和CD4022计数/分配器设计了一种45~870MHz全频道电视伴音接收机。
3.The structure of QPSK tuner used in DVB-S set top box is introduced, the structure of the CMOS tuner STV0399 is analyzed, and the operation principle is explained.介绍了在DVB-S接收机中使用的QPSK解调高频头的方案,分析了单片高频头芯片STV0399的结构和工作原理,并介绍了软件的控制流程。
英文短句/例句
1.HF head tester for TV电视机高频头测试仪
2.C-band LNB for earth statioC波段卫星地面站高频头
3.Design of DVB-T Dual-tuner Control System Based on Diversity Reception;基于分集接收的DVB-T双高频头控制系统设计
4.Inner high frequency lens, support over100 television channel, completely record by itself. The quality of the recording reaches DVD effect.内置高频头，支援100多个电视节目频道，完全独立录影，录影质量达到DVD的效果。
5.Discuss of High-Frequency Color Doppler in Acute Appendicitis Diagnosis彩超高频探头诊断急性阑尾炎的探讨
6.Jamming Effect of the High-repetition-frequency Laser to the Laser Seeker高重频激光对激光导引头的干扰效果
7.Value of Ultrasonography High-frequency and Low-frequency Probe Combined to Diagnose Acute Appendicitis高低频探头联合应用诊断急性阑尾炎的价值
8.Study on the High Frequency Resolution Technology on the MMW Radar Seeker毫米波雷达导引头频域高分辨技术研究
9.She swayed her head from side to side with worry.她忧心忡忡地频频摇头。
10.VHF and UHF direction finder甚高频与超高频测向器
11.high and very high frequency direction finding高频和甚高频测向仪
12.Super high-frequency sonography and color Doppler sonography in diagnosis of focal lesion of the skin超高频探头超声与彩色多普勒超声诊断皮肤局限性病变的进展
13.Measurement of Rectus Oculi and Optic Nerve by B-mode Real-time Ultrasonic High Frequency Probe and Its Clinical ApplicationB型超声高频探头对眼肌及视神经的测量及临床应用
14.The Value of Diagnostic of High Frequency and Color Doppler Ultrasonography in the Diagnosis of Mammary Intraductal Papilloma;高频彩色多普勒超声在乳腺导管内乳头状瘤的诊断价值
15.Exploiture and Application of Automatic Control System on Temperature for PDC Bit High Frequency Induction Welding;PDC钻头高频感应焊接温度自动控制系统的开发及应用
16.Research on Rupture Property and Residual Stress of the Joint of High Frequency Electric Resistance Welded Pipe;高频焊管焊接接头的断裂行为和残余应力的研究
17.Design of High-frequency Ultrasonic Transducer for Wire Bonding and Research on Motion Control of Bond Head引线键合高频超声换能器的设计和键合头运动控制研究
18.The design of coaxial-to-rectangular waveguide transitions adapter with SMA connector at high frequency在高频段下带SMA接头的同轴——矩形波导转换器的设计
相关短句/例句
LNB高频头
1.Development of Microwave Dielectric Ceramics for LNB;高频头用微波介质陶瓷的研究进展
2.Design and application of micro-strip filter and oscillator in LNB;高频头中微带滤波器和振荡器的设计与实现
3.Choosing Right LNBs;正确选择卫星天线高频头
3)high frequency probe高频探头
1.Objective: To study the diagnostic value of high frequency probe in celiac disease.目的:探讨高频探头对腹部疾病的诊断价值。
4)LNB(Low Noise Block)高频头(LNB)
5)single tuner单高频头
1.Then it presents a tentative plan of the realization of LCD digital analog integrated machine by a single tuner.阐述了数字电视与模拟电视的区别,提出使用单高频头实现液晶数字模拟一体机的设想及设计。
6)Dual-tuner双高频头
1.Design of DVB-T Dual-tuner Control System Based on Diversity Reception;基于分集接收的DVB-T双高频头控制系统设计
延伸阅读
高频头又称“高频调谐器”。电视机中用来接收、选频、调谐与放大所需超高频信号，并变换成中频信号的部件。通常装成一个屏蔽的独立单元，故名。要求与天线馈线匹配良好，具有够宽的通频带，本振稳定，交叉调制小，噪声小，增益高，并具有自动增益控制。
