Garmin GPS 16A Specyfikacja techniczna - Strona 31

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double

lon;

float

lon_vel;

float

lat_vel;

float

alt_vel;

float

msl_hght;

int

leap_sec;

long

grmn_days;

} cpo_pvt_data;

alt

Ellipsoid altitude (meters)

epe

Est pos error (meters)

eph

Pos err, horizontal (meters)

epv

Pos err, vertical (meters)

fix

0 = no fix; 1 = no fix; 2 = 2D; 3 = 3D; 4 = 2D differential; 5 = 3D differential;

6 and greater = not defined

gps_tow

GPS time of week (sec)

lat

Latitude (radians)

lon

Longitude (radians)

lon_vel

Longitude velocity (meters/second)

lat_vel

Latitude velocity (meters/second)

alt_vel

Altitude velocity (meters/ second)

msl_hght

Mean sea level height (meters)

leap_sec

UTC leap seconds

grmn_days Garmin days (days since December 31, 1989)

Receiver Measurement Record

- 0x10

(DLE is first byte)

- 0x34

(Receiver record identifier)

- 0xE2

(Size of data)

- cpo_rcv_data

(See below)

- one byte checksum

(The sum of bytes between the delimiters should equal 0)

- 0x10

(DLE)

- 0x03

(ETX)

typedef struct

{

unsigned long

double

unsigned int

char

unsigned char

char

} cpo_rcv_sv_data;

typedef struct

{

double

int

cpo_rcv_sv_data sv[ 12 ];

} cpo_rcv_data;

rcvr_tow

Receiver time of week (seconds)

rcvr_wn

Receiver week number

cycles

Number of accumulated cycles

Pseudorange (meters)

phase

To convert to (0 -359.999) multiply by 360.0 and divide by 2048.0

slp_dtct

0 = no cycle slip detected; non-zero = cycle slip detected

snr_dbhz

Signal strength

svid

Satellite number (0 to 31) Note: add 1 to offset to current svid numbers

valid

0 = information not valid; non-zero = information valid

190-00228-20

cycles;

pr;

phase;

slp_dtct;

snr_dbhz;

svid;

valid;

rcvr_tow;

rcvr_wn;

GPS 16/17 Technical Specifications

Page 27

Rev. C