This edition of Digital Image Processing is a major revision of the book. As in the 1977 and 1987 editions by Gonzalez and Wintz, and the 1992, 2002, and 2008 editions by Gonzalez and Woods, this sixth-generation edition was prepared with students and instructors in mind. The principal objectives of the book continue to be to provide an introduction to basic concepts and methodologies applicable to digital image processing, and to develop a foundation that can be used as the basis for further study and research in this field. To achieve these objectives, we focused again on material that we believe is fundamental and whose scope of application is not limited to the solution of specialized problems. The mathematical complexity of the book remains at a level well within the grasp of college seniors and first-year graduate students who have introductory preparation in mathematical analysis, vectors, matrices, probability, statistics, linear systems, and computer programming. The book website provides tutorials to support readers needing a review of this background material
標簽： Processing Digital Image
上傳時間： 2021-02-20
上傳用戶：
This texts contemporary approach focuses on the concepts of linear control systems, rather than computational mechanics. Straightforward coverage includes an integrated treatment of both classical and modern control system methods. The text emphasizes design with discussions of problem formulation, design criteria, physical constraints, several design methods, and implementation of compensators.Discussions of topics not found in other texts--such as pole placement, model matching and robust tracking--add to the texts cutting-edge presentation. Students will appreciate the applications and discussions of practical aspects, including the leading problem in developing block diagrams, noise, disturbances, and plant perturbations. State feedback and state estimators are designed using state variable equations and transfer functions, offering a comparison of the two approaches. The incorporation of MATLAB throughout the text helps students to avoid time-consuming computation and concentrate on control system design and analysis
標簽： 控制系統
上傳時間： 2021-12-15
上傳用戶：
CHAPTER 1: THE OP AMP CHAPTER 2: OTHER LINEAR CIRCUITS CHAPTER 3: SENSORS CHAPTER 4: RF/IF CIRCUITS CHAPTER 5: FUNDAMENTALS OF SAMPLED DATA SYSTEMS CHAPTER 6: CONVERTERS CHAPTER 7: DATA CONVERTER SUPPORT CIRCUITS CHAPTER 8: ANALOG FILTERS CHAPTER 9: POWER MANAGEMENT CHAPTER 10: PASSIVE COMPONENTS CHAPTER 11: OVERVOLTAGE EFFECTS ON ANALOG INTEGRATED CIRCUITS CHAPTER 12: PRINTED CIRCUIT BOARD (PCB) DESIGN ISSUES CHAPTER 13: DESIGN DEVELOPMENT TOOLS
上傳時間： 2021-12-21
上傳用戶：wangshoupeng199
The PW5300 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2? powerMOSFET make this regulator highly power efficient. The internal compensation network alsominimizes as much as 6 external component counts. The non-inverting input of error amplifierconnects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrushcurrent. The PW5300 is available in the SOT23-6L package and provides space-saving PCB for theapplication fields
標簽： pw5300
上傳時間： 2022-02-11
上傳用戶：jiabin
The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deliver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination
標簽： pw4556
上傳時間： 2022-02-11
上傳用戶：1208020161
The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specifications.The PW4055 No external sense resistor is needed, and no blocking diode is required due to theinternal MOSFET architecture.Thermal feedback regulates the charge current to limit the dietemperature during high power operation or high ambient temperature. The charge voltage is fixedat 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055automatically terminates the charge cycle when the charge current drops to 1/10th the programmedvalue after the final float voltage is reached. When the input supply (wall adapter or USB supply) isremoved, the PW4055 automatically enters a low current state, dropping the battery drain currentto less than 2μA. The PW4055 can be put into shutdown mode, reducing the supply current to 25μA.The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presenceof an input voltage
標簽： pw4055
上傳時間： 2022-02-11
上傳用戶：jason_vip1
The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
標簽： pw2601
上傳時間： 2022-02-11
上傳用戶：
LT3095MPUDD雙通道低噪聲偏置發生器的典型應用電路凌力爾特公司 (Linear Technology Corporation) 推出雙通道 IC LT3095，該器件從單一輸入提供兩路非常低噪聲、低紋波的偏置電源。每個通道都納入了單片升壓型 DC/DC 轉換器，一個集成的超低噪聲和高 PSRR (電源抑制比) 線性穩壓器對該轉換器進行了后置穩壓。LT3095 在輸出電壓高達 20V 時提供高達 50mA 的連續輸出電流，總紋波和噪聲 <100μVP-P。該器件在 3V 至 20V 輸入電壓范圍內工作，從而可與多種電源兼容。 LT3095 的固定頻率、峰值電流模式升壓型 DC/DC 轉換器包括一個集成的 950mA 電源開關、肖特基二極管和內部頻率補償。開關頻率在 450kHz 至 2MHz 內可通過單個電阻器編程，或可同步至一個外部時鐘，因此允許使用纖巧的外部組件。結合緊湊的 3mm x 5mm QFN 封裝，LT3095 可提供簡單、占板面積緊湊、高效率的解決方案，適用于儀表放大器、RF 和數據轉換系統、以及其他低噪聲偏置應用。 LT3095 的線性穩壓器運用凌力爾特專有的電流源基準架構，從而提供了很多優勢，例如能夠用單個電阻器設定輸出電壓，帶寬、噪聲、PSRR 和負載調節性能基本上不受輸出電壓影響。集成輸出噪聲 (在 10Hz 至 100kHz 帶寬) 僅為 4μVRMS，而且在整個開關頻率范圍內 PSRR 超過70dB，從而使總的噪聲和紋波 <100μVP-P。線性穩壓器調節升壓型轉換器的輸出電壓，使其比線性穩壓器輸出電壓高 2V，從而優化了功耗、瞬態響應和 PSRR 性能。為了提高系統可靠性，LT3095 提供短路和熱保護，還為每個通道提供獨立和精確的使能 / UVLO 門限。微功率工作時，兩個 EN 引腳均被拉低。
標簽： 噪聲偏置發生器
上傳時間： 2022-02-15
上傳用戶：
解讀 5G 八大關鍵技術 【摘要】5G 不是一次革命，5G 是 4G 的延續，我相信 5G 在核心網部分不會有太 大的變動，5G 的關鍵技術集中在無線部分。 在進入主題之前，我覺得首先應該弄清楚一個問題：為什么需要 5G？不是因 為通信工程師們突然想改變世界，而炮制了一個 5G。是因為先有了需求，才有了 5G。什么需求？ 未來的網絡將會面對：1000 倍的數據容量增長，10 到 100 倍的無線設備連接， 10 到 100 倍的用戶速率需求，10 倍長的電池續航時間需求等等。坦白的講，4G 網絡無法滿足這些需求，所以 5G 就必須登場。 但是，5G 不是一次革命。5G 是 4G 的延續，我相信 5G 在核心網部分不會有 太大的變動，5G 的關鍵技術集中在無線部分。雖然 5G 最終將采用何種技術，目前 還沒有定論。不過，綜合各大高端論壇討論的焦點，我今天收集了 8 大關鍵技術。 當然，應該遠不止這些。 1.非正交多址接入技術 （Non-Orthogonal Multiple Access,NOMA） 我們知道 3G 采用直接序列碼分多址（Direct Sequence CDMA ，DS-CDMA） 技術，手機接收端使用 Rake 接收器，由于其非正交特性，就得使用快速功率控制 （Fast transmission power control ，TPC)來解決手機和小區之間的遠-近問題。 而 4G 網絡則采用正交頻分多址（
標簽： 5G
上傳時間： 2022-02-25
上傳用戶：20125101110
溫度控制如今已成為當代社會研究的熱點之一,而溫度檢測在現代設備參數檢測中也是一項極其重要的技術,應用十分廣泛。與傳統的測溫方法相比,紅外測溫方法具有時間短、精度高、使用簡單方便等優點。本文以環境溫度為被測對象,設計了以STC89C52單片機為控制中心的紅外測溫裝置,能夠實現對目標溫度的實時采集、處理、顯示和報警等功能。本設計主要是由STC89C52單片機、紅外測溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對目標溫度進行實時檢測。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
上傳時間： 2022-03-27
上傳用戶：jiabin
