Improved guaranteed cost control and quantum adaptive control are developed in this study for a quadrotor helicopter with state Delay and actuator faults. Improved guaranteed cost control is designed to eliminate disturbance effects and guarantee the robust stability of a quadrotor helicopter with state Delay. The inapplicability of guaranteed cost control to the quadrotor linear model is addressed by combining guaranteed cost control with a model reference linear quadratic regulator. In the event of actuator faults, quadrotor tracking performance is maintained through quantum adaptive control. Finally, the availability of the proposed scheme is verified through numerical simulation
標簽： Control Helicopter Guaranteed Quadrotor Adaptive Strategy Improved Quantum Delay State
上傳時間： 2017-07-15
上傳用戶：bingzi_ml
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic Delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
標簽： frequency-domain interpolation performance Design kbit_s speech coder based and of
上傳時間： 2018-04-08
上傳用戶：kilohorse
本系統以TMS320F2812為核心設計了一種智能家居裝置——“隨叫隨到”垃圾桶，實現了語音控制垃圾桶的運動。以拾音器作為聲音傳感器，采用延時估計法（Time Delay Estimation，TDE）實現了聲源方位的實時檢測；采用超聲波傳感器實現了垃圾桶行進的蔽障功能；同時，采用語音識別技術實現了對用戶的前、后、左、右行駛或開啟、關閉垃圾桶蓋等各種語音指示的識別。從而達到了垃圾桶“隨叫隨到”的智能化、人性化的目的。
標簽： 比賽
上傳時間： 2018-10-17
上傳用戶：cyyyyyy
Optimal Guaranteed Cost Sliding-Mode Control of Interval Type-2 Fuzzy Time-Delay Systems
上傳時間： 2019-07-24
上傳用戶：sjjy0220
This book addresses two aspects of network operation quality; namely, resource management and fault management. Network operation quality is among the functions to be fulfilled in order to offer quality of service, QoS, to the end user. It is characterized by four parameters: – packet loss; – Delay; – jitter, or the variation of Delay over time; – availability. Resource management employs mechanisms that enable the first three parameters to be guaranteed or optimized. Fault management aims to ensure continuity of service.
標簽： Ethernet Networks MPLS and IP
上傳時間： 2020-05-27
上傳用戶：shancjb
It is more than a decade since GSM was first commercially available. After some unexpected Delay, it seems that finally UMTS is here to stay as a 3G system standardised by 3GPP, at least for another ten years. UMTS will enable multi-service, multi-rate and flexible IP native-based mobile technologies to be used in wide area scenarios and also pave the way for a smooth transition from circuit switched voice networks to mobile packet services.
標簽： Management Strategies Resource Radio
上傳時間： 2020-06-01
上傳用戶：shancjb
Mobile radio communications are evolving from pure telephony systems to multimedia platforms offering a variety of services ranging from simple file transfers and audio and video streaming, to interactive applications and positioning tasks. Naturally, these services have different constraints concerning data rate, Delay, and reliability (quality-of-service (QoS)). Hence, future mobile radio systems have to provide a large flexibility and scal- ability to match these heterogeneous requirements.
標簽： Communications Wireless Channels MIMO over
上傳時間： 2020-06-01
上傳用戶：shancjb
With the proliferation of cloud computing and Internet online services, more and more data and computation are migrated to geographical distributed Internet data centers (IDCs), which can provide reliability, management, and cost benefits. However, IDC operators encounter several major problems in IDC operations, such as huge energy consumption and energy cost, and high carbon emission. To deal with the above problems, IDC operators have to efficiently manage the way of energy consumption and energy supply. Considering the potential of smart grid, we focus on the energy management of IDCs in smart grid from several perspectives, i.e., power outage, carbon emission, heterogeneous service Delay guarantees, and operation risk.
上傳時間： 2020-06-07
上傳用戶：shancjb
In this chapter we give a quick overview of control theory, explaining why integral feedback control works, describing PID controllers, and summariz- ing some of the currently available techniques for PID controller design. This background will serve to motivate our results on PID control, pre- sented in the subsequent chapters.
標簽： Controllers Time-Delay Systems PID for
上傳時間： 2020-06-10
上傳用戶：shancjb
STM32F407VGT6精確脈沖控制步進電機源碼,采用STM32F407VGT6芯片，拋棄單脈沖輸出方式，直接使用普通PWM輸出方式精確輸出脈沖個數，每個脈沖都可以改變頻率和占空比。PWM+中斷，簡單粗暴。#include "sys.h"#include "Delay.h"#include "pwm1.h"#include "pwm2.h"#include "pwm3.h"//注釋見pwm1.c文件extern int count2;int main(void){ Delay_init(168); //初始化延時函數 TIM2_Init(1,167); TIM3_Init(1,167); TIM5_Init(1,167); // Delay_ms(1000); TIM2_OUTPUT(); TIM3_OUTPUT(); TIM5_OUTPUT(); while(1) { //TIM2每次輸出完10個脈沖后間隔100ms再次輸出 if(count2 >= 10){ Delay_ms(100); TIM2_OUTPUT(); } }
標簽： stm32f407vgt6 脈沖控制 步進電機
上傳時間： 2021-10-26
上傳用戶：xsr1983
