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zdscz
- 中短波广播信号场强测量及空中管理 中短波广播是指频率为500KHz～30MHz范围内的音频调幅（AM）广播-medium-short wave radio signal field strength measurement and management of air MW and SW radio frequency refers to 500KHz ~ 30M Hz within the scope of audio amplitude modulation (AM) radio
qpskasp1
- 此源码是用DSP实现QPSK调制，在CCS软件上实现．采样速率为14400样点／s，载波频率为1800Hz,带宽为300～3300Hz，符号速率为2400符号／s，滚降系数为0.35．-this source is used DSP QPSK modulation, the CCS software to achieve. Sampling rate of 14,400 samples / s, the carrier frequency of 1800 Hz. bandwidth of 300
shepindxinpin
- 摘 要：介绍一种以Atmel公司的单片机 ATmega324p为控制核心，结合数字温度传感器DS18B20和 INTEGRAT10N 公 司的无线收发芯 片 IA4421的数 字化 无线温度传感器的设计 。该设计频段(433 MHz ISM)无 需 申请 即可使 用测 温范 围为 一 4o～95℃ ，分辨率为 0．062 5℃ ，工作频率 433 MHz，接收灵敏度为 109 dBm，最 大发射功 率 8 dBm，传输距 离 200 m，采和 电池供 电。重点介绍该 系统
LPF
- A source sircuit to design a low pass filter of 10 hz cutoff.
FPGA
- 针对MT9M111数字图像传感器,采用Cyclone系列 EP1C6Q240C6作为主控芯片,设计并实现了ITU-R BT.656视频数据的采集、色彩空间转换、DVI-I显示控制的数字视频转换系统。系统可以将传感器的输入图像以1280×960(60Hz)和 1280×1024(60Hz)格式输出到DVI-I显示器上,并具有图像静止功能,同时在系统空闲时,可以将系统设置为待机状态,来降低功耗。-Aimed at the digital image sensor MT9M111,used Cyclo
SimultaneousObservation
- Very Low Frequency (VLF) spectrograms show sometimes sets of lines called MLR (Magnetospheric Line Radiation) with frequency spacing close to 50 or 60 Hz. It is very tempting to attribute these MLR to Power Line Harmonic Radiation (PLHR). PLH
dividefreq
- Multiple frequency dividers in VHDL, with comments in Spanish. Is a project done with Xilinx ISE application. It divides 50 MHz in 1, 2, 4 and 8 Hz.
freq
- This 7-digit frequency meter measuring frequency from 10 Hz up to 1300 MHz. It is based on ideas of PIC16F84 based frequency meter. The measuring range is divided into two subranges: 10Hz - 25MHz and 25 MHz - 1300MHz. The decimal point is after MHz
ad9912
- AD9912: 1 GSPS Direct Digital Synthesizer with 14-Bit DAC. IBIS model. The AD9912 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC. The AD9912 features a 48-bit frequency tuning word (FTW), which can synthesize frequenci
jiyuDSPbianliuqi
- 介绍了基于DSP 的115 V/400 Hz 三相逆变电源的设计原理和设计方法，采用移相谐振控制技术和周波变流型 高频环节逆变技术，使整机开关最大程度地实现了软开关。实验结果表明，该逆变电源设计合理、可靠性高，并在小 型化、提高功率密度和可靠性方面，取得了很好的效果-Introduced DSP-based three-phase inverter power supply 115 V/400 Hz design principle and design method, using ph
example4_7
- DSB调制和相干解调系统仿真 fm=2-figure subplot(311) plot(f,abs(yr)/N) title( 接收信号与相干载波相乘后的频谱 ) xlabel( f /Hz )
Champ_tournant
- Les bobines du stator sont alimentées par un réseau triphasé 400V - 50 Hz. L ’intensité du champ magnétique varie sinusoï dalement au cours du temps avec une période de -Les bobines du stator sont alimentées par un réseau triphasé 400V - 50
Study-on-the-Control-Scheme
- 恒频恒压(CVCF)逆变电源的输出电压波形质量是衡量其性能的重要指标之一。文章采用一种重复控制和双闭环控制相结合的电压波形控制策略，以重复控制器提高逆变电源输出电压的稳态精度，减小总谐波畸变率；以双闭环控制器达到较快的动态响应速度。该方案在一台采用TMS320F240 DSP控制芯片的50 Hz三相PWM逆变器上得到验证。-Constant voltage constant frequency (CVCF) Inverter output voltage waveform quality is
REPORTdistance
- The report details the implementation of distance measurement system using the ultrasonic waves. As the human ear’s audible perception range is 20 Hz to 20 kHz, it is insensitive to ultrasonic waves, and hence the ultrasound waves can be used for
AD9984A
- 视频接口芯片，支持1900X1200以下所有分辨率。-The AD9984A is a complete 10-bit, 170 MSPS, monolithic analog interface optimized for capturing YPbPr video and RGB graphics signals. Its 170 MSPS encode rate capability and full power analog bandwidth of 300 MHz support al
Attachments_2012_05_10
- Conversor ac dc 2 y tres cuadrantes 60 Hz
AssignmentSharp5
- A battery of 100V dc is to feed an inductive load (R = 10 ohms, L = 100 mH) with a variable dc supply from 10 - 100 V by means of a step-down converter (dc chopper) operating at a fixed switching frequency of 100 Hz. The dc chopper is composed of an
ADC0809
- ADC0809 VHDL代码的顺序控制、输入时钟模块默认为100赫兹 -ADC0809 VHDL code of sequence control, the input clock module defaults to 100 hz
60-GHz-Radio-Over-Fiber
- 使用强度调制器产生60G赫兹的无线光纤传输系统。-Wireless optical fiber transmission system to produce 60G Hz using intensity modulator.
highfrequency-9MHz
- 通过电路仿真软件仿真；实现产生频率为9m HZ的电路图；射频电子线路大作业-Circuit simulation software simulation the generated frequency circuit diagram 9m HZ RF electronic circuits operating