analog signal processing

Research on Dual-Base SAR Imaging Algorithm with Matlab Code

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Research on Dual-Base SAR Imaging Algorithm with Matlab Code

✅ Author Introduction: A Matlab simulation developer passionate about research, skilled in data processing, modeling simulation, program design, obtaining complete code, reproducing papers, and scientific simulation. 🍎 Previous Review: Follow the personal homepage:Matlab Research Studio 🍊 Personal Motto: Investigate to gain knowledge,obtain complete Matlab code and simulation consulting content via private message. 🔥 Content Introduction … Read more

Complete 16QAM Communication Link Implementation Based on FPGA with Frequency Offset Locking, Frame Synchronization, Timing Point, and Viterbi Decoding

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Complete 16QAM Communication Link Implementation Based on FPGA with Frequency Offset Locking, Frame Synchronization, Timing Point, and Viterbi Decoding

🔍See the article below for program acquisition methods 🔍The project includes complete programs, comments, references, and operation videos ⚡️Algorithm Simulation Effect Preview The simulation test results using Vivado 2022.2 are as follows (217 convolution coding and decoding Verilog development, without using IP cores): 🚀System Overview 1. 217 Convolution Coding / Viterbi Decoding The 217 convolution … Read more

FMCW Waveform and MATLAB Simulation in Signal Modeling

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FMCW Waveform and MATLAB Simulation in Signal Modeling

Radar waveforms can be classified into pulse signals and continuous wave signals based on the radar system, and further categorized by modulation methods. Pulse Signals Single Carrier Frequency Intra-Pulse, Inter-Pulse, or Pulse Group Coding Coherent Pulse Train Continuous Wave Signals FM-CW FSK-CW LFM+FSK SF-CW FM+SFCW Today, we will focus on the FMCW waveform. The derivation … Read more

Simulation of FMCW Millimeter-Wave Altimeter Radar for Drones Based on MATLAB

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Simulation of FMCW Millimeter-Wave Altimeter Radar for Drones Based on MATLAB

Abstract This article introduces a simulation of a drone millimeter-wave altimeter based on FMCW (Frequency Modulated Continuous Wave) radar technology. FMCW radar determines the distance and speed of a target by measuring the frequency difference between the transmitted signal and the echo signal. In this project, we use MATLAB to simulate the performance of the … Read more

Alcohol Gas Detection Troubles? Signal Turns Negative, Sensor Malfunctions? Remember These 3 Taboo Practices!

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Alcohol Gas Detection Troubles? Signal Turns Negative, Sensor Malfunctions? Remember These 3 Taboo Practices!

Have you encountered these frustrating issues when detecting alcohol? Clearly following the procedure, yet the All Gas sensor suddenly outputs a negative signal? After detecting high concentrations of alcohol, the sensor takes a long time to return to normal? These problems are actually related to your lack of attention to the “internal reaction logic of … Read more

24-bit PWM Pulse Width Modulation DAC (Part 1)

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24-bit PWM Pulse Width Modulation DAC (Part 1)

Unfortunately, my calibration source has malfunctioned. In the spirit of diligence and learning, I have thoroughly studied the principles of the FLUKE 5700 DAC and plan to document my learning process while also creating a test board for practical application. The FLUKE 5700 indeed uses PWM (Pulse Width Modulation) for DAC output: (1) It only … Read more

Key Components of Phased Array Antennas and FPGA Applications

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Key Components of Phased Array Antennas and FPGA Applications

What is a Phased Array Antenna? In simple terms, a phased array antenna is an advanced antenna system that electronically controls the direction of the beam without physically moving the antenna. The core components consist of multiple independent antenna elements (radiating elements) arranged in a specific pattern (array), each connected to a phase/amplitude controller (usually … Read more

KUKA Robot Group Signal Input and Output Floating Point Numbers

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KUKA Robot Group Signal Input and Output Floating Point Numbers

1. Robot Side DeclarationSIGNAL Cognex_I_X1 $IN[3104] TO $IN[3111] SIGNAL Cognex_I_X2 $IN[3112] TO $IN[3119]SIGNAL Cognex_I_X3 $IN[3120] TO $IN[3127]SIGNAL Cognex_I_X4 $IN[3128] TO $IN[3135]SIGNAL Cognex_O_X1 $OUT[3048] TO $OUT[3055]SIGNAL Cognex_O_X2 $OUT[3056] TO $OUT[3063]SIGNAL Cognex_O_X3 $OUT[3064] TO $OUT[3071]SIGNAL Cognex_O_X4 $OUT[3072] TO $OUT[3079]INT Cognex_OFFSET_X=4CHAR Cognex_O_BUFFER_X[4]DECL REAL Cognex_INPUT_OFFSET_X=8.90600DECL REAL Cognex_OUTPUT_OFFSET_X=1876.617192. Robot Program Section[Robot to PLC]$tool=tool_data[CognexToolID]$base=base_data[CognexBaseID] Cognex_SEND_Pos_DATA=$Pos_ActCognex_OUTPUT_OFFSET_X=Cognex_SEND_Pos_DATA.X Cognex_OFFSET_X=0 CAST_TO(Cognex_O_BUFFER_X[],Cognex_OFFSET_X,Cognex_OUTPUT_OFFSET_X)Cognex_O_X4=Cognex_O_BUFFER_X[1]Cognex_O_X3=Cognex_O_BUFFER_X[2]Cognex_O_X2=Cognex_O_BUFFER_X[3]Cognex_O_X1=Cognex_O_BUFFER_X[4] [PLC to Robot] (The … Read more

TDOA Passive Localization Based on CRLB in Matlab

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TDOA Passive Localization Based on CRLB in Matlab

TDOA passive localization based on CRLB in Matlab. When the available sensor locations have random errors, using a calibration transmitter with a precisely known location can significantly reduce the loss of source localization accuracy based on Time Difference of Arrival (TDOA). This is done without knowing the exact location of the calibration transmitter. By modeling … Read more

Can WiFi Measure Heartbeats? No Sensors Needed! ESP32 CSI Tutorial

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Can WiFi Measure Heartbeats? No Sensors Needed! ESP32 CSI Tutorial

Introduction:WiFi is not just for internet access! By analyzing signal fluctuations, it can “see through” the environment and perceive vital signs without additional sensors. With just an ESP32, you can unlock this technology. Seeing this title, I can tell you are skeptical, thinking this is just another one of those “academic gimmicks” that sounds impressive. … Read more