-
DCT_IDCT
to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression
for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution
now compare our special 8X8 functions with the internal general functions
use this code:
A = int32(100*rand(8,8))
tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc
tic for i = 1 : 1000 idct2(dct2(A)) end toc
i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)
- 2007-12-05 18:28:42下载
- 积分:1
-
ofdmtransmitter
OFDM通信系统发射端的simulink仿真(OFDM communication system of the transmitter simulink simulation)
- 2009-05-22 14:58:58下载
- 积分:1
-
buck1
this is buck inverter with pwm control
- 2010-02-24 18:30:14下载
- 积分:1
-
8
说明: 有详细的约束优化问题法源代码,可以用于控制器参数寻优(Constrained optimization problems with detailed method source code, can be used for controller parameters optimization)
- 2011-06-12 18:46:52下载
- 积分:1
-
series2
exercice for matlab code in machine learning
- 2010-11-30 00:57:15下载
- 积分:1
-
hardthrdenoise
小波去噪,包括各种小波变换,去噪效果好,保证可用。
(Wavelet denoising, including wavelet transforms, denoising effect, guarantee available.)
- 2010-12-19 21:21:12下载
- 积分:1
-
GPSanti-jamklms
GPS信号抗干扰方法中的KLMS算法,matlab程序(GPS signal interference methods KLMS algorithm, matlab program)
- 2013-10-09 11:40:01下载
- 积分:1
-
peizhun
Image registration source code(2 Image registration source code)
- 2010-07-10 13:38:01下载
- 积分:1
-
Rayleighmodel
Rayleigh distribution function
- 2011-01-30 21:17:09下载
- 积分:1
-
particle
说明: OSG例子系统 用一个飞机起火的模型说明例子系统的生成和实现(OSG example of the system model with a plane on fire examples of systems that generate and implement)
- 2011-04-03 21:38:08下载
- 积分:1