2ЛР / pril1

Программа2.1

Программарасчетаa(hp)

Высотыразмещения антенн ПС,м

h :=

(0.8

1.5

3

5

10)

j := 0..4

i := 1..30

fi :=

i 100

(hT)

1

= 1.5

ah1i := (1.1 log(fi)

- 0.7)h - 1.56 log(fi)- 0.8

T

Затухания для других

ahi := ah1i

городов,поселковис/х,дБ

ahb1 := 3.2 (log(11.75 hT))2

- 4.97

Затуханиедля большогогорода,дБ

stack(h,ahb1T)

ahb :=

0.8

1.5

3

5

10

Высотыразмещения антенн ПС,м

ahb =

-9.19 10- 4

-1.94

2.69

5.044

8.742

а(hp)для большогогорода,дБ

(ahi)

0

20

(ahi)

1

(ahi)

2

10

(ahi)

3

(ahi)

4

ahb11

0

- 10

1 103

2 103

3 103

fi

Рис. П.2.1.

частота, МГц

(ah17)1

= -1.559

(ah17)

= 22.695

4

(ah9)

= -1.584

ahb1

= 8.742

1

4

0

(-2.72

-1.67

0.58

3.58 11.08)

(-2.925 -1.643 1.104

4.766

13.922)

(-3.044 -1.627 1.41

5.46

15.584)

(-3.129

-1.616

1.628

5.952

16.763)

(-3.195 -1.607 1.796

6.334

17.678)

(-3.249

-1.6 1.934

6.646

18.426)

(-3.295 -1.594 2.05

6.91

19.058)

(-3.334 -1.589 2.151

7.138

19.605)

(-3.369

-1.584 2.24

7.34

20.088)

(-3.4

-1.58

2.32

7.52 20.52)

(-3.428 -1.576 2.392

7.683

20.911)

(-3.454

-1.573

2.458

7.832

21.267)

(-3.477

-1.57 2.518

7.969

21.596)

(-3.499

-1.567

2.574

8.096

21.899)

ah1 = (-3.52

-1.564

2.626

8.214

22.182)

(-3.539 -1.562 2.675

8.324

22.447)

(-3.557

-1.559

2.721

8.428

22.695)

(-3.574 -1.557 2.764

8.526 22.93)

(-3.59

-1.555 2.805

8.618

23.151)

(-3.605

-1.553

2.844

8.706

23.362)

(-3.619

-1.551 2.881

8.79

23.562)

(-3.633

-1.549

2.916

8.869

23.752)

(-3.646 -1.547 2.949

8.945

23.935)

(-3.659 -1.546 2.982

9.018

24.109)

(-3.671

-1.544

3.012

9.088

24.277)

(-3.682 -1.543 3.042

9.155

24.437)

(-3.693

-1.541 3.071

9.22

24.592)

(-3.704

-1.54

3.098

9.282

24.741)

(-3.714 -1.538 3.125

9.342

24.885)

(-3.724 -1.537 3.15

9.4 25.024)