Power spectrum estimation is widely used in the field of analyzing the frequency components of stationary ergodic random signals, and has been successfully applied to practical projects such as radar signal processing and fault diagnosis. This article gives several types of classical power spectrum estimation methods, and analyzes the performance of the classical power spectrum […]
Tag: simulation
Trajectory planning simulation of articulated six-axis manipulator based on MATLAB
Trajectory planning in Cartesian space is divided into linear trajectory planning and arc trajectory planning. This article is a matlab simulation analysis of arc interpolation method in Cartesian space. Table of Contents 1 Experimental purpose 2 Experimental content 2.1 Standard D-H parameter method 2.2 Matlab functions used in experiments 3 all codes 4 Simulation results […]
P7001 [NEERC2013] Fraud Busters (Simulation)
[NEERC2013] Fraud Busters Title translation Given a string of length 9 containing unknown characters, unknown characters are represented by ‘*’ (without quotes). Given below are n strings of length 9. If the string entered below is exactly the same as the string entered at the beginning except for the unknown part, then the string meets […]
NOIP2023 simulation 13 joint tests 34 competition
The main idea of the title Given a n n A team of n players goes to participate in the competition. The competition has m m m questions, each player can 100 % 100\% 100% will be l i ~ r i l_i \sim r_i li?~ri? Questions are completed. During the competition, the team will […]
NOIP2023 simulation 13 joint test 34 abstract
The main idea of the title There is one tree with n n A tree of n points, each point has a point weight a i a_i ai?, f ( i , j ) f(i,j) f(i,j) and g ( i , j ) g(i,j) g(i,j) respectively represent i i i arrive j j Find the […]
NOIP2023 simulation 13 joint test 34 origin
The main idea of the title given n n n integers a 1 , a 2 , … , a n a_1,a_2,\dots,a_n a1?,a2?,…,an?, find ∑ i = 1 n ∑ j = i n ( ? k = i j a k ) 2 \sum\limits_{i=1}^n\sum\limits_{j=i}^n(\bigoplus\limits _{k=i}^ja_k)^2 i=1∑n?j=i∑n?(k=i?j?ak?)2 Output answer model 998244353 998244353 The value after […]
The nature of communication, communication methods, the principles and multiple characteristics of anonymous pipes (access control, pipe_buf, atomicity, half-duplex), pipe() + simulation implementation code, communication between multiple processes (anonymous pipes, simulation implementation code )
Table of Contents communication introduce Why should there be communication? the nature of communication How to communicate pipeline system V posix standard Signal pipeline introduce anonymous pipe Principle introduce process Implement — pipe() function prototype parameter return value mock code Features Used for communication between parent and child processes Provide access control When the buffer […]
Handwritten txt simulation database simple framework
1. Foreword Previously, the school asked us to write the console Ele.me project. At that time, the progress did not reach the database, so we used text files txt to simulate the implementation of the database. In fact, it is essentially a file reading and writing, but simple file reading and writing cannot cover what […]
Pseudo-random sequence-m sequence and MATLAB simulation
Article directory Preface 1. m sequence 1. Generation of m sequence 2. Properties of m sequence ①.Balance ②. Run distribution ③、Shift addition characteristics ④.Autocorrelation function ⑤.Power spectral density ⑥. Pseudo noise characteristics 2. M sequence 1. Generation of m sequence 2. Properties of m sequence 3. m sequence in MATLAB 1. MATLAB code of m […]
[Metal Growth] Simulation of metallic nickel grain growth based on phase field with matlab code
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For code acquisition, paper reproduction and scientific research simulation cooperation, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization […]