请问如何用MATLAB实现多载波线性调频信号及雷达模糊函数

楼主要学会用MATLAB的help命令啊：

help modulate

MODULATE Signal modulation for communications simulations

Y = MODULATE(X,Fc,Fs,METHOD,OPT) modulates the message signal X with a

carrier frequency Fc and sampling frequency Fs,using the modulation

scheme in METHODOPT is an extra sometimes optional parameter whose

purpose depends on the modulation scheme you choose

Fs must satisfy Fs > 2Fc + BW,where BW is the bandwidth of the

modulated signal

METHOD MODULATION SCHEME

'am',Amplitude modulation,double side-band,suppressed carrier

'amdsb-sc' OPT not used

'amdsb-tc' Amplitude modulation,double side-band,transmitted carrier

OPT is a scalar which is subtracted from X prior to

multiplication by the carrier cosineIt defaults to

min(min(X)) so the offset message signal is positive and

has a minimum value of zero

'amssb' Amplitude modulation,single side-band

OPT not used

'fm' Frequency modulation

OPT is a scalar which specifies the constant of frequency

modulation kfkf = (Fc/Fs)2pi/max(max(abs(X))) by

default for a maximum frequency excursion of Fc Hertz

'pm' Phase modulation

OPT is a scalar which specifies the constant of phase

modulation kpkp = pi/max(max(abs(x))) by default for a

maximum phase excursion of +/-pi radians

'pwm' Pulse width modulation

If you let OPT = 'centered',the pulses are centered on the

carrier period rather than being "left justified"

'ppm' Pulse position modulation

OPT is a scalar between 0 and 1 which specifies the pulse

width in fractions of the carrier periodIt defaults to 1

'qam' Quadrature amplitude modulation

OPT is a matrix the same size as X which is modulated in

quadrature with X

If X is a matrix,its columns are modulated

[Y,T] = MODULATE() returns a time vector the same length as Y

gprmax3d读取geo，如 [mesh,header,media]=gprmax2g('geo');，image（mesh）

out用[Header,Fields]=gprmax('out');

好好研究下得到的两个结构体，然后成像！

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