diff --git a/app/src/main/java/koren/swiftescaper/domain/viewmodel/MainViewModel.kt b/app/src/main/java/koren/swiftescaper/domain/viewmodel/MainViewModel.kt
index 4cace75..63da54a 100644
--- a/app/src/main/java/koren/swiftescaper/domain/viewmodel/MainViewModel.kt
+++ b/app/src/main/java/koren/swiftescaper/domain/viewmodel/MainViewModel.kt
@@ -3,7 +3,6 @@ package koren.swiftescaper.domain.viewmodel
 import android.util.Log
 import androidx.lifecycle.ViewModel
 import com.minew.beaconset.MinewBeacon
-import koren.swiftescaper.domain.remote.LocationService
 import koren.swiftescaper.util.KalmanFilter
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
@@ -28,7 +27,29 @@ class MainViewModel: ViewModel() {
     fun setBeacons(beacons: List<MinewBeacon>) {
         val filteredBeacons = beacons.filter { it.uuid == "FDA50693-A4E2-4FB1-AFCF-C6EB07647825" }
         _beacons.value = filteredBeacons.toList()
-        estimatePosition(beacons) // 위치 추정 시작
+        estimatePosition(filteredBeacons) // 위치 추정 시작
+    }
+
+    // RSSI 가우시안 필터 적용 함수
+    private fun applyGaussianFilter(rssi: Int): Double {
+        val sigma = 3.0 // 표준편차 설정
+        val mean = rssi.toDouble()
+        return (1 / (sigma * kotlin.math.sqrt(2 * Math.PI))) * kotlin.math.exp(-0.5 * ((rssi - mean) / sigma).pow(2.0))
+    }
+
+    // RSSI 스무딩 처리 함수
+    private fun applySmoothingFilter(currentRSSI: Double, previousRSSI: Double): Double {
+        val alpha = 0.75 // 스무딩 계수
+        return alpha * currentRSSI + (1 - alpha) * previousRSSI
+    }
+
+    // 거리 추정 함수 (상대적 거리 추정)
+    private fun estimateDistanceFromRSSI(rssi: Double): Double {
+        // 기본 경로 손실 지수 (실험적 값, 환경에 따라 조정 가능)
+        val pathLossExponent = 2.0
+
+        // 임의의 근사치로 계산
+        return 10.0.pow(-rssi / (10 * pathLossExponent))
     }
 
     // 비콘 신호를 바탕으로 위치를 추정하는 함수
@@ -37,7 +58,7 @@ class MainViewModel: ViewModel() {
             "적어도 3개의 비콘과 해당하는 RSSI가 필요합니다."
         }
 
-        val sortBeacons =beacons.sortedBy { it.rssi }
+        val sortedBeacons = beacons.sortedBy { it.rssi }
         // 칼만 필터 초기화
         val processNoise = 0.1 // 프로세스 노이즈(예시 값)
         val measurementNoise = 1.0 // 측정 노이즈(예시 값)
@@ -47,20 +68,34 @@ class MainViewModel: ViewModel() {
         val kalmanY = KalmanFilter(processNoise, measurementNoise, estimatedError)
 
         // 비콘 3개를 사용한 삼변측량
-        val (beacon1, beacon2, beacon3) = sortBeacons
+        val (beacon1, beacon2, beacon3) = sortedBeacons
+
+        // RSSI 보정 및 거리 추정
+        val rssi1 = applyGaussianFilter(beacon1.rssi)
+        val smoothedRSSI1 = applySmoothingFilter(rssi1, beacon1.rssi.toDouble())
+        val distance1 = estimateDistanceFromRSSI(smoothedRSSI1)
+
+        val rssi2 = applyGaussianFilter(beacon2.rssi)
+        val smoothedRSSI2 = applySmoothingFilter(rssi2, beacon2.rssi.toDouble())
+        val distance2 = estimateDistanceFromRSSI(smoothedRSSI2)
+
+        val rssi3 = applyGaussianFilter(beacon3.rssi)
+        val smoothedRSSI3 = applySmoothingFilter(rssi3, beacon3.rssi.toDouble())
+        val distance3 = estimateDistanceFromRSSI(smoothedRSSI3)
 
         // 비콘 좌표
         val (x1, y1) = 0.0 to 0.0
         val (x2, y2) = 0.0 to 200.0
         val (x3, y3) = 100.0 to 50.0
 
+        // 삼변측량 계산
         val A = 2 * (x2 - x1)
         val B = 2 * (y2 - y1)
         val C = 2 * (x3 - x1)
         val D = 2 * (y3 - y1)
 
-        val E = beacon1.distance.pow(2) - beacon2.distance.pow(2) + x2.pow(2) - x1.pow(2) + y2.pow(2) - y1.pow(2)
-        val F = beacon1.distance.pow(2) - beacon3.distance.pow(2) + x3.pow(2) - x1.pow(2) + y3.pow(2) - y1.pow(2)
+        val E = distance1.pow(2) - distance2.pow(2) + x2.pow(2) - x1.pow(2) + y2.pow(2) - y1.pow(2)
+        val F = distance1.pow(2) - distance3.pow(2) + x3.pow(2) - x1.pow(2) + y3.pow(2) - y1.pow(2)
 
         val x = (E - F * (A / C)) / (B - D * (A / C))
         val y = (E - A * x) / B
@@ -71,7 +106,5 @@ class MainViewModel: ViewModel() {
 
         _x.value = kalmanX.getEstimate() // x 좌표 갱신
         _y.value = kalmanY.getEstimate() // y 좌표 갱신
-
-
     }
 }
diff --git a/app/src/main/java/koren/swiftescaper/ui/view/MainActivity.kt b/app/src/main/java/koren/swiftescaper/ui/view/MainActivity.kt
index ee55dc3..4299777 100644
--- a/app/src/main/java/koren/swiftescaper/ui/view/MainActivity.kt
+++ b/app/src/main/java/koren/swiftescaper/ui/view/MainActivity.kt
@@ -225,4 +225,4 @@ class MainActivity : ComponentActivity() {
         }
         handler!!.post(runnable!!) // Start sending messages
     }
-}
+}
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