automatic gain control for imageintensified camera

... (R - Y) như sau: Giáo trình kỹ thuật điện Mạch tự động điều chỉnh độ lợi AGC AUTOMATIC GAIN CONTROL Ta dùng 2 Transistor T 1 và T 2 dẫn điện ở 2 thời ... cực yếu và đổi lại khi C yếu thì AGC cho phép phân cực mạnh. Với màu AGC có tên là ACC (Automatic Color Control) . hình Khi qua nhiều mạch, sóng tải phụ đổi pha nên sắc của màu bị sai, ta sửa ... N N G G A A N N G G hình HBT: Horizontal Blocking Transformer: biến thế dao động ngang kiểu Block HDT: Horizontal Drive Transformer: biến thế của BJT H.Drive Dao động Blocking thích hợp...

Ngày tải lên: 15/12/2013, 16:15

... to automatic control. ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 17 Fig. 20. Comparison of Analog and Digital Control Signals. CONTROL MODES Control systems use different control ... Circuits 107 Motor Control Circuits 114 ENGINEERING MANUAL of AUTOMATIC CONTROL ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 36 ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 22 Fig. ... the controller sensor span: Gain is a term often used in industrial control systems for the change in the controlled variable. Gain is the reciprocal of proportional band: The output of the controller...

Ngày tải lên: 24/01/2014, 23:20

Ngày tải lên: 22/06/2014, 22:20

... response 55 13 Thus the voltage gain can be varied by changing the control voltage level y v . There is flexibility in controlling the gain because the control voltage is an analog signal. ... Fig 5.5 Gain steps from 0dB to 14dB 71 Fig 5.6 Gain steps from 2dB to 16dB 71 Fig 5.7 Gain steps from -12dB to 0dB 72 Fig 5.8 Gain steps from -26dB to -14dB 72 Fig 5.9 Noise Figure for different ... The gain can be programmed from 0dB to 42dB in 2dB increments with -3dB bandwidth greater than 425MHz for the entire range of gain. The 3 rd - order intercept point (IIP3) is above -13.6dBm for...

Ngày tải lên: 06/11/2012, 10:26

Ngày tải lên: 01/10/2013, 13:49

... Application). ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 1 CONTROL SYSTEMS FUNDMENTALS ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 9 Control Loop Classification Description Ventilation ... Proportional-Integral Control Response to Load Changes. ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 17 Fig. 20. Comparison of Analog and Digital Control Signals. CONTROL MODES Control systems ... 33 Controllers 33 Actuators 33 Auxiliary Equipment 34 Characteristics And Attributes Of Control Methods 35 ENGINEERING MANUAL OF AUTOMATIC CONTROL vi ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL...

Ngày tải lên: 25/10/2013, 13:15

... these changes in relation to the performance of automatic HVAC control systems. The chart is also useful in troubleshooting a system. For additional information about control of the basic processes ... OUTPUT TO CONTROLLER BELLOWS LIQUID FILL CAPILLARY CONTROLLED MEDIUM (E.G., WATER) BULB C2083 ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 35 CHARACTERISTICS AND ATTRIBUTES OF CONTROL ... cost, and reliable actuators for large valves and dampers Simplest modulating control Most common for simple on-off control Integral sensor/ controller Simple sequence of control Broad environmental limits Complex modulating actuators, especially...

Ngày tải lên: 25/10/2013, 13:15

... ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 36 ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 18 Figure 22 shows a sample control loop for basic two-position control: a thermostat ... proportional and PI control is that proportional control is limited to a single final control element position for each value of the controlled variable. PI control changes the final control element ... deviation of the controlled variable. Compensates for system dynamics and allows faster control response. Also called “three- mode” or “rate-reset” control. Reset Control: See Compensation control. Sensing...

Ngày tải lên: 12/12/2013, 04:15

Ngày tải lên: 12/12/2013, 20:28

... evaluation: WER values for instructor K using the WSJ-5K language model. hours 4 for a threshold of 2 when training over tran- scripts for one third of a lecture. Therefore, it can be concluded ... train an ASR system for the other half or for when the course is next offered, and still results in signifi- cant WER reductions. And yet even in this sce- nario, the business case for manually transcrib- ing ... 41.52 Table 3: Experimental evaluation: WER values for instructor R using the WEB language models. As for how the transcripts improve, words with lower information content (e.g., a lower tf.idf score)...

Ngày tải lên: 20/02/2014, 07:20

... because NAC encompasses so much more. 1.1.3. Control freak Control is a vital part of network access control. Controlling admission to a network and controlling access while a user is on the network ... deploying NAC and defining access control policies, the company usually decides how leniently or stringently they want to enforce their access control policies for compliant or non-compliant ... be controlled. Like with any business operation, technological and market drivers influence the need for network access control or limitations. Also, the number of network users, the information...

Ngày tải lên: 07/03/2014, 04:20

Ngày tải lên: 14/03/2014, 09:20

... Chapter 6. 3.2.2 Chained Form Before developing the controller for the model given in (3.10), the system must be converted into chained form. The (2,n) single-chain form has the following structure ... computer acting as the controller determines how to turn the steering wheels to follow the correct path. Fig. 1.1 shows the feedback control system for lateral control. The lateral controller’s purpose ... systems. Among the classes of controllers that have been implemented are: fuzzy controllers, neural networks, and adaptive controllers. In addition, specific controllers are developed for indi- vidual applications....

Ngày tải lên: 14/03/2014, 14:20

Ngày tải lên: 16/03/2014, 12:20

... long-term information. In this paper the best performing measures from (Pucher, 2005), which outperform baseline models on word prediction for conversational tele- phone speech are used for Automatic ... conversational speech. The JCN (Sec- tion 2.1) measure performs best for nouns using the noun-context. The LESK (Section 2.1) measure per- forms best for verbs and adjectives using a mixed word-context. Text-based ... 129–132, Prague, June 2007. c 2007 Association for Computational Linguistics WordNet-based Semantic Relatedness Measures in Automatic Speech Recognition for Meetings Michael Pucher Telecommunications...

Ngày tải lên: 17/03/2014, 04:20

... primarily for performance evaluation, as their goal was to derive the exact form of the waiting time distribution for end-items. They do however present (but do not test) an iterative procedure for ... lead-times for the components are independent normally distributed random variables. They provide two formulations for this situation and note that managers may not be able to grasp such formulations. In ... demand for the frequently used options (with historical frequencies of use exceeding 20%) to plan for λ H (m-L) testers. For the infrequently used options we planned either 1 or 2 units for each option....

Ngày tải lên: 17/03/2014, 14:20

Ngày tải lên: 18/03/2014, 02:20

... lower signifi- cance level for adequacy. Results confirmed that our method using noun-phrase chunking is effective for automatic evaluation for ma- chine translation. 2 Automatic Evaluation Method using ... the Association for Computational Linguistics, pages 108–117, Uppsala, Sweden, 11-16 July 2010. c 2010 Association for Computational Linguistics Automatic Evaluation Method for Machine Translation ... Oyamada, Hiroshi Echizen-ya and Kenji Araki. 2010. Automatic Evaluation of Machine Translation Using both Words Information and Comprehensive Phrases Information. In IPSJ SIG Technical Report, Vol.2010-NL-195,...

Ngày tải lên: 23/03/2014, 16:20

... such as information re- trieval, information extraction, similarity estima- tion and textual entailment. Tree edit distance is defined as the minimum costly set of basic oper- ations transforming ... score for a pair is calculated on the minimal set of edit operations that transform T into H. An entailment relation is assigned to a T-H pair in the case that overall cost of the transformations ... quality of the system performance even more than the cost scheme used by the experts (Intuitive cost scheme). Further- more, using the fine-grained and weighted cost scheme for edit operations we...

Ngày tải lên: 23/03/2014, 17:20

Ngày tải lên: 23/03/2014, 18:20