feed forward back propagation neural network matlab program

i need to make a matlab program (classifier block) with following characteristics:

• feed forward back propagation neural network
• y=g(xi*wi+b);
• where,

g=activation function (tansig)

xi=inputs=ca3(file attached)

wi=weights

b=bias values

• the neural network has:

1 hidden layer

3 hidden neuron

1 ouput layer

also it was advised to create the network using newff matlab function and traingd matlab function.

please help as i have never work on neural network before also i have tried using applications (PATTERN RECOGNITION , CLASSIFICATION LEARNER) inbuild in matlab but they are not giving me desired accuracy.

NOTE:NEURAL NETWORK CIRCUIT BLOCK DIAGRAM ALSO ATTACHED