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为了便于信号发射,提高信道利用率、发射功率效率以及改善通信质量,人们研制出各种通信信号的调制样式。尽管调制样式多种多样,但实质上调制不外乎用调制信号去控制载波的...
为了便于信号发射,提高信道利用率、发射功率效率以及改善通信质量,人们研制出各种通信信号的调制样式。尽管调制样式多种多样,但实质上调制不外乎用调制信号去控制载波的某一个(或几个)参数,使这个参数按照调制信号的规律而变化。调制信号可以分别“寄生”在已调信号的振幅、频率和相位中,相应的调制就是调幅、调频和调相这三大类熟知的调制方式。
MSK信号就是调频这一大类中的一种相位连续的移频键控。其主要特点是包络恒定,带外辐射小,实现较简单,可用于移动通信中的数字传输
-see up
- 2022-06-26 02:16:48下载
- 积分:1
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SDRAM
verilog编写的SDRAM实验,有串口调试助手和相关资料!!!!!!!!!!!!!!!!!!!!!(Verilog prepared by the SDRAM experiment, a serial debugging assistant and related information!!!!!!!!!!!!!!!!!!!!!)
- 2014-09-13 11:24:46下载
- 积分:1
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cos
原创:cos函数和sin函数的VHDL实现,很实用(cos of the VHDL implementation)
- 2020-11-27 22:29:30下载
- 积分:1
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EP2C70F896C6N-pins
将VHDL程序下载到DE2开发板,引脚分配时需要知道的芯片每个引脚功能(VHDL program will be downloaded to the DE2 development board, you need to know when the pin assignments for each pin of the chip functions)
- 2020-12-09 11:09:21下载
- 积分:1
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bcd
it shows bcd counter
- 2013-01-01 16:16:48下载
- 积分:1
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This is a debugging software online CPLD. Be able to meet the general requiremen...
这是一款CPLD的在线调试软件。能够满足用于学习者的一般要求。-This is a debugging software online CPLD. Be able to meet the general requirements for learners.
- 2023-04-04 00:05:04下载
- 积分:1
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verilog编写随机数产生源程序,在硬件电路设计中应用广泛。本程序是在LFSR and a CASR 基础上实现的...
verilog编写随机数产生源程序,在硬件电路设计中应用广泛。本程序是在LFSR and a CASR 基础上实现的-random number generator to prepare Verilog source code, in the hardware circuit design applications. This procedure is in the LFSR and a CASR based on the
- 2023-03-24 01:00:04下载
- 积分:1
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Double_Pulse_Test
利用VHDL语言描述出一个双脉冲,可任意设置两脉冲长和中间时间间隔。(A double pulse is described in VHDL language, and the two pulse length and the intermediate time interval can be arbitrarily set.)
- 2020-11-22 12:29:35下载
- 积分:1
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PCI_DG
说明: 这是XILINS关于PCI设计的书籍,欢迎大家下载,逻辑设计(This is XILINS PCI design on the books, are welcome to download)
- 2010-04-15 13:19:41下载
- 积分:1
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core_arm.tar
ARM7系统IP核的VHDL语言源代码,需要的开发环境是QUARTUS II 6.0。(ARM7 System IP Core VHDL language source code, the need for the development environment is QUARTUS II 6.0.)
- 2021-04-20 00:18:51下载
- 积分:1