SU132867A1 - Method for analyzing random processes - Google Patents
Method for analyzing random processesInfo
- Publication number
- SU132867A1 SU132867A1 SU655514A SU655514A SU132867A1 SU 132867 A1 SU132867 A1 SU 132867A1 SU 655514 A SU655514 A SU 655514A SU 655514 A SU655514 A SU 655514A SU 132867 A1 SU132867 A1 SU 132867A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- random processes
- voltage
- analyzing random
- analyzing
- screen
- Prior art date
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Description
Дл исследовани веро тностных распределений случайного процесса обычно используют либо сложные многоканальные анализаторы , либо осуществл ют последовательный анализ, требующий больщих затрат времени.To study the probability distributions of a random process, either complex multichannel analyzers are usually used, or a sequential analysis is carried out that takes a lot of time.
Предлагаемый фотографический способ свободен от этих недостатков и характеризуетс сочетанием достаточно высокой точности (пор дка нескольких процентов) со сравнительной простотой аппаратуры (стандартный осциллограф и фотоприставка) и быстродействием. Способ заключаетс в том, что исследуемое напр жение подают на отклон ющие пластины электронно-лучевой трубки (на одну пару пластин, если исследуетс одномерный закон распределени , л на обе пары пластин, если исследуетс двумерный закон распределени ). При этом ркость засветки различных точек экрана трубки оказываетс пропорциональной частоте попадани электронного луча в эти точки или в конечном итоге плотности распределени веро тностей исследуемого напр жени . Полученное на экране напр жение фотографируют на фотопластинку. Почернение фотоэмульсии анализируют с помощью микрофотометра. Дл устранени погрещностей, вызванных нелинейностью характеристической кривой фотографической эмульсии и непосто нством ее при изменении условий съемки и обработки -фотоматериала , на ту же пленку фотографируют с экрана осциллографа изображение калибровочного напр жени , измен ющегос по известному закону. В качестве напр жени можно использовать линейное вилообразное напр жение с несколькими наклонами с известным соотношением тангенсов углов наклона или же экспоненциальное напр жение .The proposed photographic method is free from these drawbacks and is characterized by a combination of sufficiently high accuracy (on the order of a few percent) with comparative simplicity of the apparatus (standard oscilloscope and photo attachment) and speed. The method consists in that the test voltage is applied to the deflection plates of the cathode ray tube (for one pair of plates, if a one-dimensional distribution law is tested, l for both pairs of plates, if a two-dimensional distribution law is investigated). In this case, the brightness of the illumination of different points of the tube screen is proportional to the frequency of electron beam hit at these points or, ultimately, the probability density of the voltage under investigation. The voltage received on the screen is photographed on a photographic plate. Blackening of the emulsion is analyzed using a microphotometer. To eliminate irregularities caused by the nonlinearity of the characteristic curve of a photographic emulsion and its inconsistency when changing the conditions of filming and processing of photomaterials, an image of a calibration voltage changing according to a known law is photographed from the oscilloscope screen on the same film. As a voltage, one can use a linear forked voltage with several slopes with a known ratio of tangents of slope angles, or an exponential voltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU655514A SU132867A1 (en) | 1960-02-12 | 1960-02-12 | Method for analyzing random processes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU655514A SU132867A1 (en) | 1960-02-12 | 1960-02-12 | Method for analyzing random processes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU132867A1 true SU132867A1 (en) | 1960-11-30 |
Family
ID=48403885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU655514A SU132867A1 (en) | 1960-02-12 | 1960-02-12 | Method for analyzing random processes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU132867A1 (en) |
-
1960
- 1960-02-12 SU SU655514A patent/SU132867A1/en active
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