% Oving 2, Problem 2.24 close all f = 9400e6; % Antenna properties: verticalBeamWith = .8; % degrees gain_dB = 33; % dB gain = 10^(gain_dB/10); azimuth_rotation_rate = 20; %rpm Pt = 25e3; ppr = 4000; R_nf = 5; %dB R_BW = 15e6; %Hz system_loss = 12; %dB T_fa = 4*60*60; %seconds P_fa = 1/(T_fa*R_BW); sigma = 10; n=26; Ae = 1; fn = 1; SNR_req = zeros(1,numel(1e5:1e4:1e6)); % Calculate reqired SNR for different ranges for range = 1e5:1e4:1e6 SNR_req(range) = (Pt*gain*Ae*sigma)/((4*pi)^2 * 290* 1.3e-23*fn*range^4); end %plot(1:1000, SNR_req); cross_section_target = 10; %m**2 Pd = 0.3:0.1:0.99; SNR_dB = zeros(1,numel(Pd)); for i = 1:numel(Pd) SNR_dB(i) = calcSNR(Pd(i),P_fa,n); end for i=1:numel(Pd) SNR(i) = 10^(SNR_dB(i)/10); end plot(10*log10(SNR_req)); grid on; hold on;
Comments
0 B
|👍
/👎
0 B
|👍
/👎