1. Introduction Frequency hopping communication has been widely used because of its strong security, strong anti-interference ability and high spectrum utilization. Frequency hopping synchronization is one of the key technologies. It has become a research hotspot to realize synchronization and ensure its stability in a short time. With the development of software radio technology, the […]
Category: Programmable Logic
Design of HDB3 encoder and decoder based on VHDL language and programmable logic device
1. Introduction HDB3（High Density Bipolar third order high density bipolar) code is an improved bipolar return to zero code based on AMI code. It has the advantages of no direct current component in the power spectrum of AMI code and can carry out error self checking. It also overcomes the disadvantage of timing extraction of […]
What programming language does FPGA use_ The function of FPGA
What programming language does FPGA use Today we will focus on what programming language FPGA uses. Many people often ask in the forum, is FPGA developed with C language? Some foreign companies focus on the development and solution of compiler, in order to achieve the purpose of replacing VHDL with C language, and also develop […]
Implementation of improved parallel data processing algorithm in FPGA
1. Introduction In the process of signal processing, we usually convert analog signal into digital signal for processing or transmission. The original data is collected by sampling method, and the analog signal is converted into digital signal through a / D conversion. However, due to the large number of code bits, such digital signals occupy […]
Design of driving timing control scheme based on CPLD
1. Introduction As early as the 1950s, people began to study the ultraviolet detection technology. Ultraviolet detection technology is another dual-purpose photoelectric detection technology after infrared and laser detection technology. With the development and research of UV detector, UV sensor, UV-CCD and other solid UV camera devices, UV imaging system has made great progress in […]
The principle and fast algorithm of median filter and its implementation with FPGA Technology
introduction Modern image processing systems require more and more real-time performance, but the front-end image acquisition is often affected by the device or environment, so the image obtained contains noise, so it is necessary to remove the noise before image processing. If the general software method is used, because the processing process needs a lot […]
Application of FPGA in communication_ How to use FPGA to do algorithm
Application of FPGA in communication Field programmable gate array (FPGA) chip has been widely used in many fields, especially in the field of wireless communication. Because of its strong real-time performance and parallel processing ability, it is possible to process signals in real time. This section not only makes a detailed analysis of the application […]
The basic principle of stepping motor subdivision drive and its design based on FPGA
1. Introduction Stepper motor is an executive component which converts pulse signal into angular displacement or linear displacement. It is an incremental driving element corresponding to output and input digital pulse. With the advantages of high positioning accuracy, small inertia, no accumulated error, good starting performance, easy control, low price and convenient interface with computer, […]
Hardware and software design of embedded system based on FPGA
1. Preface In recent years, with the rapid development of embedded core chip, the traditional design method of embedded system has been changed. The embedded system gradually transits from board level to chip level, namely SOC. System on chip (SOC) is an integrated device that pursues the maximum tolerance of product system, and it is […]
Implementation of dynamic reconfigurable function based on FPGA by modular design
With the continuous development of programmable technology, FPGA is widely used in various fields of electronic design. New design ideas and methods have been proposed and applied constantly, such as FPGA dynamic partial reconfiguration technology. The so-called dynamic reconfiguration refers to that for digital logic systems with time sequence changes, the timing logic is not […]