| 1. | A tms320c6416 - based receiver for automatically receiving frequency - hopping signals
6416的跳频信号自动接收机 |
| 2. | Receiving frequency range
接收频率范围 |
| 3. | Frequency display . the frequency display displays the currently selected transmit and receive frequency
频率显示，频率显示所显示的是当前选择的发射和接收频率。 |
| 4. | Begin to receive frequency application from january 1 , 2007 , began to undertake frequency examine and approve on july 1 , 2007 , extend relevant licence
从2007年1月1日开始接收频率申请， 2007年7月1日开始进行频率审批，发放相关许可证。 |
| 5. | Answer : begin to receive frequency application from january 1 , 2007 , began to undertake frequency examine and approve on july 1 , 2007 , extend relevant licence
答：从2007年1月1日开始接收频率申请， 2007年7月1日开始进行频率审批，发放相关许可证。 |
| 6. | Many existing co dsl modems may only support a relatively narrow receive frequency range , which will increase the difficulty of estimating the much wider bandwidth far - end loop noise
许多已有的co (中心局) dsl调制解调器可以只支持相对较窄的接收频率范围，这会增加估计宽的多的远端环路噪声的难度。 |
| 7. | The receiver works on active mode and passive mode in different time . in active mode , the receiver is narrow - band and high sensitive , and if phase - lock technology is used to stabilize receiving frequency . and in passive mode , the receiver is an all - power millimeter wave radiometer with periodic calibration to improve measure precision
此接收机采用分时工作体制，在主动工作方式时为窄带的高灵敏度毫米波接收机，接收机中采用中频锁相技术，简化了毫米波锁相带来的困难；在被动工作方式时为全功率型的毫米波辐射计，这种辐射计在每次测量后都采用两个标准源对辐射计定标，实现周期定标，消除因系统增益波动和有效本机噪声波动带来的测量误差，提高测量测量精度。 |
| 8. | It mainly includes two parts : the frequency offset caused by the difference of the mobile equipment ’ s transmitting frequency and the nodeb ’ s receiving frequency ; the frequency offset caused by the vehicle of the mobile equipment , which is called doppler shift . accurate frequency offset estimation and compensation is of importance for demodulation
它主要由两部分构成:由于nodeb (基站)和移动台晶振本振频率的不同而产生频偏;由于移动台运动产生多普勒效应,引起的多普勒频偏,在信号功率谱上表现为多普勒频谱扩展(以后简称多普勒扩展) 。 |
