From 9595d685261539aee4bdf9d2b3542c8c2e5bad38 Mon Sep 17 00:00:00 2001 From: YKG Date: Wed, 4 Mar 2026 19:54:15 +0900 Subject: [PATCH] =?UTF-8?q?=EC=8B=A0=ED=98=B8=20=EB=B0=8F=20=EB=85=B8?= =?UTF-8?q?=EC=9D=B4=EC=A6=88=20amplitude=20=EC=83=9D=EC=84=B1=20=EC=8B=9C?= =?UTF-8?q?=20=EC=9E=84=ED=94=BC=EB=8D=98=EC=8A=A4=20=EB=B3=80=EC=88=98?= =?UTF-8?q?=EB=A5=BC=20=EC=82=AC=EC=9A=A9=ED=95=98=EB=8F=84=EB=A1=9D=20?= =?UTF-8?q?=EC=B6=94=EA=B0=80.=20=EB=B3=80=EC=88=98=20=EA=B0=92=EC=9D=80?= =?UTF-8?q?=2050=20=EC=98=B4?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 03. Rx Path/apply_lna_and_mixer.m | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/03. Rx Path/apply_lna_and_mixer.m b/03. Rx Path/apply_lna_and_mixer.m index a35a94d..a03abcf 100644 --- a/03. Rx Path/apply_lna_and_mixer.m +++ b/03. Rx Path/apply_lna_and_mixer.m @@ -33,6 +33,7 @@ function [adc_raw_data, adc_combined] = apply_lna_and_mixer(RxOut, TxOut, RadarP NumTx = RadarParams.Antenna.NumTx; rxPathGain_dB = RadarParams.Rxpath.rxPathGain_dB; system_NF_dB = RadarParams.Rxpath.system_NF_dB; + impedance_ohm = 50; % 임피던스 기준 (일반적으로 50옴) PA_Profile = RadarParams.RFOutput.PA_Profile; SpurParams = RadarParams.SpurParams; enable_spur = true; @@ -59,8 +60,8 @@ function [adc_raw_data, adc_combined] = apply_lna_and_mixer(RxOut, TxOut, RadarP P_inst_dBm = interp1(PA_Profile(:,1), PA_Profile(:,2), f_inst, 'linear', 'extrap'); end - % dBm -> Watt -> 전압 진폭(V) 변환 (50옴 시스템 기준) - Vtx_inst = sqrt(10.^((P_inst_dBm - 30) / 10) * 50); + % dBm -> Watt -> 전압 진폭(V) 변환 (임피던스 기준) + Vtx_inst = sqrt(10.^((P_inst_dBm - 30) / 10) * impedance_ohm); % --- 2. 수신단 시스템 잡음 계산 --- T_ref = RadarParams.Basic.T0; @@ -71,7 +72,7 @@ function [adc_raw_data, adc_combined] = apply_lna_and_mixer(RxOut, TxOut, RadarP % ADC 입력단 기준 최종 잡음 전력 및 전압 표준편차 P_noise_total_W = P_noise_floor_W * system_NF_lin * rxPathGain_lin; - sigma_n = sqrt(P_noise_total_W * 50); + sigma_n = sqrt(P_noise_total_W * impedance_ohm); % --- MIMO 모드에 따른 TX 활성화 패턴 계산 --- % TDM: 처프마다 다른 TX만 활성화