Search - noise - CodeBus

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[Other Embeded program] stereoheadset DL : 0: BLUETOOTH Stereo Headset Source Code,含CVC(噪音消除,回声抵消),可用于开发蓝牙立体声耳机,蓝牙车载,经过测试.-BLUETOOTH Stereo Headset Source Code. with CVC (eliminating noise, echo cancellation), for the development of Bluetooth stereo headphones, Bluetooth truck, after testing.
Date : 2025-12-29 Size : 445kb User :
[Other Embeded program] 20090903FPGA DL : 0: 本文论述并设计实现了一个脱机自由手写体数字识别系统。文中首先对待识别数字的预处理进行了介绍，包括二值化、平滑滤波、规范化、细化等图像处理方法；其次，探讨了如何提取数字字符的结构特征和笔划特征，并详细地描述了知识库的构造方法；最后采用了以知识库为基础的模板匹配识别方法,并以MATLAB作为编程工具实现了具有友好的图形用户界面的自由手写体数字识别系统。实验结果表明，本方法具有较高的识别率，并具有较好的抗噪性能。-In this paper, designed and implemented an off-line handwritten numeral recognition system. The paper first pre-treatment identification numbers were introduced, including binarization, smoothing filter, normalization, thinning and other image processing methods secondly, to explore how to extract the number of characters in the structural characteristics and stroke features, and described in detail Knowledge of construction methods finally adopted in order to Knowledge-based template matching recognition method, and to MATLAB as a programming tool to achieve a friendly graphical user interface handwritten numeral recognition system. The experimental results show that this method has higher recognition rate, and has good anti-noise performance.
Date : 2025-12-29 Size : 342kb User : zhangying
[Other Embeded program] BY DL : 0: 蜂鸣器响声频率测试程序作用：因为蜂鸣器在市面买回来频率相近，但不同批次与不同厂家都有分别，导致一个通用的程序无法发出量理想的响声，而且多是不在最佳频率时响声就变得很小。本程序就是通过串口从PC中手动输入不同的值, 得到清脆响亮的最佳参数。使用时直接用该参数取代A即可，程序中已有详细中文注释，非常方便。（常用值在88左右）作者：泊浪时间：2010-01-18-Buzzer sound frequency of testing procedures effect: Because the buzzer in the market to buy back the frequency similar, but different batches and different manufacturers have different lead to a common set of procedures can not be issued by the ideal amount of noise, but mostly not in the best good frequency when the sound becomes very small. This procedure is through the serial port from a PC to manually enter different values get the best parameters sonorous. When using the direct use of this parameter can be replaced by A, the program a detailed English notes, very convenient. (Common values of the 88 or so) Author: Bo waves Time :2010-01-18
Date : 2025-12-29 Size : 1kb User : 泊浪
[Other Embeded program] Filtra3 DL : 0: Noise Canceller since C to VHDL RTL authomatic generation throught CoDeveloper by Impulse
Date : 2025-12-29 Size : 52.45mb User : viri62
[Other Embeded program] AD8330 DL : 0: ad8330英文资料更好的解释ad8330，内有ad8330框图，和框图原理，还有基本框图应用-ad8330FEATURES Fully Differential Signal Path May also be Used with Single-Sided Signals Inputs from 0.3 mV to 1 V rms, Rail-Rail Outputs Differential RIN = 1 k ROUT (Each Output) 75 Automatic Offset Compensation (Optional) Linear-in-dB and Linear-in-Magnitude Gain Modes 0 dB to 50 dB, for 0 V < VDBS < 1.5 V (30 mV/dB) Inverted Gain Mode: 50 dB to 0 dB at –30 mV/dB 0.03 to 10 Nominal Gain for 15 mV < VMAG < 5 V Constant Bandwidth: 150 MHz at All Gains Low Noise: 5 nV/√Hz typical at Maximum Gain Low Distortion: ≤–62 dBc Typ Low Power: 20 mA Typ at VS of 2.7 V – 6 V Available in Space Saving 3 3 LFCSP Package
Date : 2025-12-29 Size : 577kb User : fei
[Other Embeded program] labzaoyin DL : 0: 用labWindows编写，在面版上模拟产生白噪音，随机噪音，高斯噪音等-With labWindows written to simulate the panel to produce white noise, random noise, Gaussian noise
Date : 2025-12-29 Size : 26kb User : 廖陈宋
[Other Embeded program] filtro_xilinx_conajuste DL : 0: Noise canceller with number of bits study
Date : 2025-12-29 Size : 2kb User : viri
[Other Embeded program] 360compkill_4.3.0.3042_XiaZaiBa DL : 0: 自适应噪声对小技术在语音信号处理中的应用与研究，非常强大-adaptive noise cancelling
Date : 2025-12-29 Size : 4.21mb User : xiao凤兮
[Other Embeded program] BMP085 DL : 0: BMP085是一款高精度、超低功耗的大气压力传感器，非常适合应用于移动设备中，比如：手机，PDA，GPS导航设备和户外运动设备。它的性能卓越，气压的分辨率可以达到0.03hPa，高度的噪声(跳动)只有0.25m，并且耗电极低，只有3μA。BMP085气压传感器采用强大的8-pin陶瓷无引线芯片承载（LCC）超薄封装，可以通过IIC总线直接与各种微处理器相连。-BMP085 is a high-precision, ultra-low power barometric pressure sensor, very suitable for mobile devices, such as: mobile phone, PDA, GPS navigation devices and outdoor sports equipment. Its performance, pressure resolution can be achieved 0.03hPa, high noise (jitter) is only 0.25m, and the power consumption is very low, only 3A. BMP085 pressure sensor uses robust 8-pin ceramic leadless chip carrier (LCC) ultra-thin package, can be a variety of IIC bus directly connected to the microprocessor.
Date : 2025-12-29 Size : 2kb User : 覃松
[Other Embeded program] TPA3110LD2 DL : 0: TPA3110LD2是一款经典的立体声耳机放大器，它具有杂音抑制功能，无需使用外部直流阻隔输出电容器。-TPA3110LD2 is a classic stereo headphone amplifier, it has a noise suppression, without the use of an external DC blocking output capacitors.
Date : 2025-12-29 Size : 608kb User : 章鱼
[Other Embeded program] CCDCAR DL : 0: 柔和启动采样速率加倍 50Hz 舵机校正更方便串口修改PID 提高抗干扰能力速度自适应速度检测电路改进后无线设置参数(OK) //都用前排循线(改为前3排,2007.5.7) PID均扩大10倍(改为自适应PID 2007.5.2) 刹车加剧(2007.5.7) m_cSampNum = -24 (改为-25) 抗干扰能力加强(冲出跑道可回来2007.5.7) 增加滤波算法(未成功2007.5.20) 外部AD(2007.5.23) //50X40 //使用最大与最小中心方法控制转向使用惯性滤波方法控制转向外部AD数据口改为AD0 高分辨率72X40 2007.5.25 降低阀值 20->15 速度平滑减少行数间隔删行,减小梯形失真 2007.5.30-Soft start doubling the sampling rate 50Hz steering correction is more convenient to modify PID improved noise immunity serial speed adaptive speed detection circuit improved wireless setup parameters (OK)// are used front through the line (to the first three rows, 2007.5.7 ) PID have expanded 10-fold (to adaptive PID 2007.5.2) Brake exacerbated (2007.5.7) m_cSampNum =-24 (to-25) immunity enhancing (runway can come back 2007.5.7) increased filtering algorithm (unsuccessfully 2007.5.20) external AD (2007.5.23)// 50X40// use methods to control the maximum and minimum center steering control steering filtering method using inertial data port to an external AD AD0-resolution 72X40 2007.5.25 lower valve Value 20-> 15 velocity smoothing to reduce the number of rows deleted row spacing, reducing keystone 2007.5.30
Date : 2025-12-29 Size : 782kb User : znbin
[Other Embeded program] MegaAVR-PLC-Output-Board DL : 0: IO expantion board design for MegaAvr based simple PLC It will help designing Hardened low noise I/O ports
Date : 2025-12-29 Size : 403kb User : MReza
[Other Embeded program] XiangGanJiLei DL : 0: 雷达中的信号相干积累，使得信号的信噪比提升N倍。-Coherent integration radar signal, so the signal to noise ratio enhancement N times.
Date : 2025-12-29 Size : 5kb User : 张盼盼
[Other Embeded program] ADA4800_cn DL : 0: ADA4800 是内置一个有源负载的电压缓冲器。该缓冲器是一个低功耗、高速、低噪声、高压摆率、快速建立、具有固定增益 1 的单芯片放大器，适合电荷耦合器件（CCD）应用。-ADA4800 is a built-in active load voltage buffer. This buffer is a low power, high speed, low noise, high slew rate, fast build, single chip has a fixed gain amplifier 1, for a charge-coupled device (CCD) applications.
Date : 2025-12-29 Size : 900kb User : 叶影
[Other Embeded program] AC-MOTOR-SVPWM-VF DL : 0: SVPWM正弦波方式驱动交流电机，该方式驱动电机噪音低，转速稳定-SVPWM sine wave way ac drive motor, the way to drive motor noise is low, speed stability
Date : 2025-12-29 Size : 3.97mb User : 健
[Other Embeded program] AD7172-4 DL : 1: AD7172-4是一款低噪声、低功耗、多路复用的Σ-Δ型模数转换器(ADC)，具有4/8通道（全差分/单端）输入，可供低带宽信号使用。对于完全建立的数据，AD7172-4的最大通道扫描速率为6.21 kSPS (161 μs)。该器件的输出数据速率范围为1.25 SPS至31.25 kSPS。-AD7172-4 is a low noise, low power, multiplexed Σ-Δ analog to digital converter (ADC), with a 4/8 channels (fully differential/single-ended) inputs, using available low-bandwidth signal . For data fully established, the maximum channel scan rate AD7172-4 is 6.21 kSPS (161 μs). The output data rate the part of the range of 1.25 SPS to 31.25 kSPS.
Date : 2025-12-29 Size : 1.05mb User : 张艺兴
[Other Embeded program] noise_del DL : 0: FPGA 中噪声消除功能的实现实例，仅供参考-FPGA noise delect
Date : 2025-12-29 Size : 1kb User : fhzlv
[Other Embeded program] 3546 DL : 0: Modeling and simulation pwm rectifier Multi-target tracking particle filter, ML estimation method can be a good signal to noise ratio.
Date : 2025-12-29 Size : 6kb User : ganqanhan
[Other Embeded program] tsqwc DL : 0: Includes the modulation, demodulation, signal to noise ratio calculation, cordic matlab simulation algorithm, Modern signal processing used in the spectral estimation in matlab.
Date : 2025-12-29 Size : 4kb User : faimunqeifen
[Other Embeded program] bsgje DL : 0: ECG data and includes source code written in MATLAB, By applying the beam forming technology of BER Independent component analysis algorithm reduces the raw data noise.
Date : 2025-12-29 Size : 147kb User : manqiekei

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