dynamic phase error 中文意思是什麼
dynamic phase error
解釋
動態相位誤差-
The feedbacks of position, velocity, acceleration and dynamic pressure were applied to adjust the model, so the control system of single jar electrodraulic servo mechanism was built. to reduce the system error and interference error, the compound control was designed. the results of simulations showed that the magnitude attenuation and phase lag of the system come to the project demand
引入包括位置反饋、速度反饋、加速度反饋和動壓反饋在內的反饋控制技術對電液伺服驅動機構模型進行綜合校正，從而建立單缸電液伺服控制系統，並在分析系統誤差和擾動誤差后，加入復合控制減小系統誤差和抑制干擾，模擬結果表明復合控制系統的控製品質有了明顯改善，能夠滿足工程需求。 -
3. with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit, we have successfully enhanced sensitivity, expanded dynamic range, increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption. 4
3 、對通信機的全面改進，包括lna結構的調整、鎖相環環路濾波器的優化、發射部分結構的調整以及中頻解調電路的相差調整，提高了系統的接收靈敏度、改善了本振的頻譜純度、減少了鎖相環的鎖定時間、使中頻解調后的信號質量大為提高，同時還減少了體積、節約了系統的功耗。 -
And typical super heterodyne structure in rereiver part. this scheme benefited to reduce frequency error and phase error, and had the advantages of good dynamic range and selectivity, short exploitation cycle and small venture in the given performance demand, etc. this system implemented a six - layer hoard rf handset model together with baseband by using advanced eda tool veribest 2000
系統設計應用hd155131的gsm900 dcs1800雙頻解決方案，發射機部分主要採用offsetpll方案，該方案有利於減小系統的頻率誤差和相位誤差；接收機部分採用典型的超外差式結構，它具有優良的動態范圍和選擇性，在給定的性能要求下具有開發周期短、風險小等特點。 -
Moreover, we put forward many schemes to erase errors such as static error, dynamic error, or make them little. especially we dicuss how to deal with the phase - shifting cell ( pzt ) and interferogram. in the end we bring forward two methods to estimate the contour of piano : one is traditional parameter, the other is power spectral density ( psd )
提出從兩方面對面形進行評價，一是用傳統光學像質評價指標，二是利用psd從頻譜角度評價面形，從而為高精度檢測和控制大口徑光學元件表面面形（波前）提供了依據。 -
The results of the test demonstrated that the system has a good performance in the linearity, dynamic scope, isolation, coherence of the amplitude. the group delay of the upmixers is 2ns, which is better than other domestic manufactures. because the inconsistency between the isolation and the phase coherence, and the error of the test method, we haven ’ t gotten the good performance of the phase coherence. the next work is improving the restrain of the filter to the lo signal and the phase test methods
在單路發射通道上，群時延達到了2ns ，優于國內很多產品。三路通道之間的相位一致性由於測試方法的誤差以及隔離度指標的牽引作用，我們不能調試達到非常好的在相位一致性指標，再下一輪的工作中必須提高濾波器對本振信號的抑制度，改進相位測試方法以達到指標要求。
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