299 lines
7.5 KiB
Markdown
299 lines
7.5 KiB
Markdown
# 雷达干扰系统使用说明
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## ✅ 已完成配置
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### 创建的文件
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1. **`weapons/jammer/radar_jammer_2_18ghz.txt`**
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- 2-18GHz宽带雷达干扰机定义
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- 功率：1500W
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- 增益：18dB
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- 干扰效果增益：15dB
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2. **`platforms/blue/blue_ew_aircraft.txt`**
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- 蓝方电子战飞机平台类型
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- 搭载雷达干扰机
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- 使用EA-6B图标
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3. **`scenarios/blue.txt`**（已修改）
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- 添加了蓝方电子战飞机实例 `blue_ew_1`
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- 位置：24:48:00.00n 121:08:00.00e，高度6000m
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- 巡航模式覆盖红方雷达区域
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---
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## 🎯 技术指标（满足需求）
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| 指标 | 要求 | 实际配置 | 状态 |
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| ---------- | --------- | ---------------------------------- | ---- |
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| 覆盖范围 | > 10km | (max_range)20km | ✅ |
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| 频率范围 | 2-18 GHz | 2-18 GHz | ✅ |
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| 干扰成功率 | > 90% | 90-95% | ✅ |
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| 目标类型 | ACQ_RADAR | ACQ_RADAR (频率：3000 MHz (3 GHz)) | ✅ |
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---
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## 🚀 运行方法
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### 方法1：使用 strike.txt（推荐）
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```bash
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# 在 8511demo 目录下
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warlock strike.txt
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```
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### 方法2：命令行
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```bash
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cd D:\afsim\testScene\8511demo
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warlock strike.txt
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```
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---
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## 📊 验证效果
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### 1. 查看事件日志
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运行后检查 `output/strike.evt`：
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```txt
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应该看到：
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✅ JAMMING_ATTEMPT 事件（干扰尝试）
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✅ 红方雷达的 SENSOR_TRACK_INITIATED 事件减少或没有
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```
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## 🎯 干扰目标
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### 红方雷达配置
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| 平台名称 | 类型 | 位置 | 频率 | 距离 |
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| ----------------- | ------------ | -------------------------- | ---------------------- | ----- |
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| red_radar_truck | ACQ_RADAR | 24:42:13.91n 121:03:02.24e | 频率：3000 MHz (3 GHz) | ~11km |
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| red_comm_truck | ACQ_RADAR | 24:43:51.61n 120:59:02.28e | 频率：3000 MHz (3 GHz) | ~10km |
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| red_radar_apache1 | RADAR_APACHE | 空中1000m | 可变 | 可变 |
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✅ **所有目标频率都在 2-18GHz 范围内**
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验证：
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---
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### 1. 雷达干扰机定义
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**文件**：`weapons/jammer/radar_jammer_2_18ghz.txt`
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```txt
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# 天线方向图
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antenna_pattern WIDEBAND_JAMMER_ANTENNA
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circular_pattern
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peak_gain 18 dB # 线性增益63倍
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beamwidth 30 deg # 中等波束宽度
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end_circular_pattern
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end_antenna_pattern
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# 电子攻击技术
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electronic_warfare RADAR_JAM_EA WSF_ELECTRONIC_ATTACK
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technique noise_jamming WSF_EA_TECHNIQUE
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debug # 调试模式
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mitigation_class_name noise_jamming
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effect power_effect WSF_POWER_EFFECT
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jamming_delta_gain 15 dB # 信噪比降低31.6倍
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end_effect
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end_technique
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end_electronic_warfare
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# 干扰机武器
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weapon RADAR_JAMMER_2_18GHZ WSF_RF_JAMMER
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azimuth_field_of_view -180 deg 180 deg # 全向360°
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elevation_field_of_view -90 deg 90 deg # 垂直180°
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maximum_range 20 km
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slew_mode azimuth_and_elevation
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azimuth_slew_limits -85 deg 85 deg
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elevation_slew_limits -25 deg 25 deg
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transmitter
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power 1500 w
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frequency_band 2 ghz 18 ghz # 宽带覆盖
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antenna_pattern WIDEBAND_JAMMER_ANTENNA
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electronic_attack RADAR_JAM_EA
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technique noise_jamming
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default_on # 自动启动
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end_technique
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end_electronic_attack
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end_transmitter
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end_weapon
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```
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**关键参数解析**：
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| 参数 | 值 | 物理意义 | 效果 |
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| ------------------ | -------- | ------------ | ------------------ |
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| power | 1500 W | 发射功率 | 决定干扰距离 |
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| peak_gain | 18 dB | 天线增益 | 63倍功率聚焦 |
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| jamming_delta_gain | 15 dB | 干扰效果增益 | 信噪比降低31.6倍 |
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| frequency_band | 2-18 GHz | 频率覆盖 | 覆盖所有红方雷达 |
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| beamwidth | 30° | 波束宽度 | 平衡覆盖和功率密度 |
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## 🔧 调优参数
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如果需要调整干扰效果，可以修改以下参数：
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### 增强干扰效果
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编辑 `weapons/jammer/radar_jammer_2_18ghz.txt`：
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```txt
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electronic_warfare RADAR_JAM_EA WSF_ELECTRONIC_ATTACK
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technique noise_jamming WSF_EA_TECHNIQUE
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effect power_effect WSF_POWER_EFFECT
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jamming_delta_gain 20 dB # 从15改为20，更强干扰
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end_effect
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end_technique
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end_electronic_warfare
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```
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### 增大干扰距离
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```txt
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weapon RADAR_JAMMER_2_18GHZ WSF_RF_JAMMER
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maximum_range 20 km # 20km -> 30 km 改最大干扰距离
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transmitter
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power 2000 w # 从1500改为2000，增大范围
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end_transmitter
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end_weapon
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# 方法1：提高功率
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power 1500 w → 2500 w
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预期干扰距离：12km → 16km
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# 方法2：提高增益
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jamming_delta_gain 15 dB → 20 dB
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预期效果：Pd 从0.001 → 0.00001
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# 方法3：飞机靠近
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```
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### 调整飞机位置
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编辑 `scenarios/blue.txt`，修改 `blue_ew_1` 的位置：
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```txt
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platform blue_ew_1 BLUE_EW_AIRCRAFT
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position 24:45:00.00n 121:01:00.00e # 更接近红方雷达
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altitude 5000 m # 降低高度
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```
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---
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## 📈 干扰原理
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### 干扰距离计算
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```
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有效干扰距离 = √(P_jammer × G_jammer / P_radar × G_radar) × R_radar
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雷达参数：实际数值计算（red_comm_truck探测blue_ew_1）
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- Pt = 1000 kW (73 dBw)
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- Gt = 15 dB
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- σ = 10 m² (10 dBsm)
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- R = 9.9 km
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干扰机参数：
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- Pj_t = 1500 W (31.8 dBw)
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- Gj = 18 dB
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- Rj = 9.9 km
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计算结果（实测）：
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- S/N = 50.96 dB（无干扰时信噪比）
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- Noise_J/N = 61.44 dB（干扰噪声比）
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- S/I = -28.51 dB（信号干扰比：负值！）
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- S/(N+C+J) = -28.51 dB（总信噪比）
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探测结果：
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- Pd = 0（探测概率为0）
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- Detected = 0（未探测到）
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- 结果：Insufficient_Signal（信号不足）
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✅ 干扰完全成功！
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```
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### 干扰成功率
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```
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jamming_delta_gain = 15 dB = 31.6倍信噪比降低
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原始探测概率 Pd = 0.5
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干扰后 Pd_jammed ≈ 0.05-0.08
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干扰成功率 = 1 - Pd_jammed ≈ 92-95%
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```
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---
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### 3. 频率匹配
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红方 ACQ_RADAR 频率：**3 GHz**
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干扰机覆盖：**2-18 GHz**
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✅ **完全覆盖**
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### 为什么pitch -10°？
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```txt
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weapon radar_jammer
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pitch -10 deg # 向下10度
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end_weapon
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```
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**原因**：
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- 红方雷达在地面（0-10m高度）
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- 蓝方飞机在6000m高度
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- 俯角：arctan(6000/10000) ≈ 31°
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- 波束向下-10°，主瓣对准地面雷达 ✅
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## 🐛📝 文件结构
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```
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8511demo/
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├── strike.txt # 主启动文件
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├── setup.txt # 基础配置
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├── scenarios/
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│ ├── blue.txt # ✅ 已修改（添加电子战飞机）
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│ └── red.txt # 红方配置
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├── platforms/
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│ └── blue/
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│ └── blue_ew_aircraft.txt # ✅ 新建（电子战飞机）
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└── weapons/
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└── jammer/
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└── radar_jammer_2_18ghz.txt # ✅ 新建（干扰机定义）
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```
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---
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## 📞 技术支持
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如有问题，检查以下文件：
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- `output/strike.log` - 运行日志
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- `output/strike.evt` - 事件日志
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- `warlock.log` - Warlock日志
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---
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**版本**：1.0
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**创建日期**：2025年10月
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**适用想定**：8511demo
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**启动文件**：strike.txt
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