mixed high frequency 中文意思是什麼
mixed high frequency
解釋
混合高頻-
The designs of circuit and electro magnetic compatibility ( emc ) are very important for the high - speed disposal system and the design of high frequency printed circuit is more important. it is described in detail in this article ; for the mixed voltage system, the meet of different voltage chip is very important and it is also described in detail
對于高速處理系統，電路設計和電磁兼容性（ emc ）的設計很重要，尤其是高頻布線要求更高，本文對此做了比較詳細的介紹;在混合電壓系統中，不同電源電壓器件的介面需進行電壓變換，本文對此也做了詳細的介紹。 -
This paper presented a novel denoising algorithm based on wavelet packet decomposition in order to wipe off noise mixed with texture lying in high frequency
為了有效去除與紋理信息同處于高頻的噪聲，基於小波包分解提出了一種新穎的去噪方法。 -
The developments of high - speed circuits and mmic pose the problem of analyzing the circuits characterized both in time and frequency domains. a variety of mixed time - frequency methods have been developed during the last quarter century in the research of the vlsi interconnect and package analysis and nonlinear steady - state analysis. this paper examines these methods from a unified point of view. various mixed problems are formulated as circuit equations in the mixed time - frequency domain. fundamental approaches to slove the equations are given, from which all of the published mixed methods can be naturally deduced. this facilitates the comprehension of these methods and is helpful for their applications. some new ideas are proposed based on the cross reference among these different kinds of methods
隨著高速集成電路及mmic （微波單片集成電路）的發展，提出了對時-頻混合表示電路進行分析的任務.本文用統一的觀點考察了通常屬于高速電路互連與封裝分析、非線性電路穩態響應分析兩個不同方面的混合分析問題，指出這類問題的實質是要求解一個時-頻混合的電路方程，給出了求解這一方程的基本思路，闡明了現有的各種方法是如何從這一基本思路導出的.這可為認識這些方法的本質與聯系，促進它們的應用與發展提供參考.此文還探討了某些方法之間的相互借鑒，提出了若干新的想法 -
Since the cause of caustics phenomena is that the tangent plane of lagrange submanifold in caustic fields is perpendicular to the original physical space, we solve the high frequency asymptotic problem in a new mixed space by changing the projecting direction, then we get the high frequency asymptotic solutions of wave equations efficiently near and on the caustics
由於出現焦散現象的原因在於lagrange子流形在該處的切平面與物理空間垂直，通過轉換適當的投影方向，然後將這個投影方向上得到的高頻近似解再變換回到原來的物理空間中，得到了在焦散附近適用的高頻近似解。 -
Continuous - time analog filter is the only method when processing high frequency signal ( usually above 1mhz ) in low power consumption. it has been widely used in the area of communication, electronic measurement, instruments, autocontrol, etc. it ’ s especially used in digital and analog mixed signal processing and communication integrated circuit. current - mode filter becomes the new research direction in the world, as it ’ s high speed, low power consumption and simple configuration
提出了基於ota的多功能電流模式雙二階濾波器，基於ota的八階切比雪夫濾波器，用模擬lc梯形電路法設計橢圓低通濾波器時，在傳統的狀態變量選取方法的基礎上，用改進后的狀態變量選取方法得到了（ k + 1 ）階橢圓函數低通濾波器的簡化信號流圖，實現了簡化的基於ota的橢圓低通濾波器電路。 -
In this paper, a mixed method with the combination of advantages of analog and digital is discussed. it consists of two parts, analog and digital. first capacitance is converted to frequency by analog part, which makes the relations between capacitance and frequency, then high accuracy and instantaneous frequency measurement is accomplished by digital part based on the multiple period synchronization method
隨著數字電路的成熟，也有數字方法。本文結合模擬和數字方法兩者的優點，採用模/數混合方法。該方法由模擬和數字電路兩部分組成，首先由模擬電路建立電容到頻率的函數對應關系;然後由數字電路對頻率計數。 -
The mixed control chip sg3525a combined with hardware pi controller generates the high - frequency pwm pulse for the first inverter. the digital control block tms320lf2407a mainly provides current preset for constant - current source through the outer filter, pwm pulse for the second inverter and drive signal for the high - frequency pulse power supply
其中變極性電源的一次逆變pwm信號由pwm發生晶元sg3525a ，配以外部硬體電路pi調節器產生;一次逆變閉環控制迴路的電流給定（配以外部濾波） 、二次逆變pwm驅動以及高頻脈沖電源的控制則由tms320lf2407a數字控制器實現。
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