Sabrina Contaldi
Wesley Hershberger
Vidit Khandelwal
- Used PEP9 Assembly and Java
| Field Name | # of Bits | Range |
|---|---|---|
| Latitude | 15 | encode(x) = (x + 90) * 100 decode(x) = (x / 100) - 90 |
| Longitude | 16 | encode(x) = (x + 180) * 100 decode(x) = (x / 100) - 180 |
| Elevation | 15 | encode(x) = (x + 200) * 2 decode(x) = (x / 2) - 200 |
| Ambient Temp | 10 | encode(x) = (x + 200) * 2 decode(x) = (x / 2) - 200 |
| Ambient Light | 16 | significand(x) = 14 least-significant bits exponent(x) = 2 greatest-significant bits encode(x) = for exponent in [0, 3] if x < 2^14 * 2^exponent: exponent = exponent significand = round(x / 2^exponent) return decode(x) = significand(x) * 2^exponent(x) |
| Wind Speed | 9 | encode(x) = x * 2 decode(x) = x / 2 |
| Internal Temp | 9 | encode(x) = (x + 50) * 2 decode(x) = (x / 2) - 50 |
| Charge level | 9 | encode(x) = (x*4) decode(x) = (x/4) |
| Subsystem Indicator | 10 | No Encoding |
| Subsystem Status Code | 6 | No Encoding |
| Alert Indicator | 1 | No Alert = 0 Alert = 1 |
| Internal time | 48 | No Encoding |
| Hours of operation | 20 | No Encoding |
| Byte boundary | Length (bits) | Name |
|---|---|---|
| 6 | 48 | Internal Time |
| 2 | 16 | Ambient Light |
| 2 | 16 | Longitude |
| 3 | 15 | Latitude |
| 9 | Wind Speed | |
| 3 | 15 | Elevation |
| 9 | Internal Temperature | |
| 2 | 10 | Subsystem Indicator |
| 6 | Subsystem Code | |
| 5 | 20 | Hours of Operation |
| 10 | Ambient Temperature | |
| 1 | Alert Indicator | |
| 9 | Charge Level | |
| Message Size | Total Bytes | |
| 23 | 23 |
| Field Name | # of Bits | Range |
|---|---|---|
| Mission Mode | 4 | Navigate = 0 Recharge = 1 Wait_Light_Above = 2 Wait_Light_Below = 3 Wait_AmbientTemp_Above = 4 Wait_AmbientTemp_Below = 5 Wait_InternalTemp_Above = 6 Wait_InternalTemp_Below = 7 Wait_WindSpeed_Above = 8 Wait_WindSpeed_Below = 9 Wait_Time = 10 |
| Latitude | 15 | encode(x) = (x + 90) * 100 decode(x) = (x / 100) - 90 |
| Longitude | 16 | encode(x) = (x + 180) * 100 decode(x) = (x / 100) - 180 |
| Charge Level | 9 | encode(x) = (x*4) decode(x) = (x/4) |
| Wait Condition | 32 | Varies based on value in Mission Mode |
| Lighting Level | 16 | significand(x) = 14 least-significant bits exponent(x) = 2 greatest-significant bits encode(x) = for exponent in [0, 3] if x < 2^14 * 2^exponent: exponent = exponent significand = round(x / 2^exponent) return decode(x) = significand(x) * 2^exponent(x) |
| Ambient Temperature | 10 | encode(x) = (x + 200) * 2 decode(x) = (x / 2) - 200 |
| Internal Temperature | 9 | encode(x) = (x+50)*2 decode(x) = (x/2)-50 |
| Wind Speed | 9 | encode(x) = x*2 decode(x) = x/2 |
| Time | 48 | No Encoding |
| Byte Boundary | Length (bits) | Name |
|---|---|---|
| 6 | 48 | Time |
| 4 | 32 | Wait Condition |
| 2 | 16 | Lighting Level |
| 2 | 16 | Longitude |
| 3 | 15 | Latitude |
| 9 | Charge Level | |
| 4 | 10 | Ambient Temperature |
| 9 | Internal Temperature | |
| 9 | Wind Speed | |
| 4 | Mission Modes | |
| Message Size | Total Bytes | |
| 21 | 21 |